SEARCHING DWPI POLYMER INDEXING ON NEW
STN
BRIAN LARNER
IP & SCIENCE – THOMSON REUTERS
JIM BROWN
SENIOR KEY ACCOUNT MANAGER - FIZ KARLSRUHE
19th November 2015
AGENDA
• Introduction to DWPI Polymer Indexing
• Enhanced Polymer Indexing
– Benefits of using Polymer Indexing
– Coverage of Polymer Indexing
– Linking of codes
• Manual coding of Polymers
• Indexing of Polymers in DCR
2
POLYMER INDEXING SYSTEMS IN DWPI
• Enhanced Polymer Indexing
– The most comprehensive system
– Only available to CPI subscribers
– Commenced in 1993
– Prior to that the older Plasdoc coding system was used
• Manual codes
– Based on information in DWPI abstract only
– Focused on broadest concepts in patent only
• Derwent Chemistry Resource (DCR)
– More restrictive coverage
– Accessible by Non-CPI subscribers
CPI SECTIONS
• A
Polymers & plastics
• B
Pharmaceuticals
• C
Agrochemicals
• D
Food, detergents, water treatment, biotechnology
• E
General chemicals
• F
Textiles & paper
• G
Printing, coating & photographic
• H
Petroleum
• J
Chemical Engineering
• K
Nucleonics, explosives & protection
• L
Refractories, glass, ceramics cement & electro(in)organics
• M
Metallurgy
4
ENHANCED POLYMER INDEXING
• Deep indexing system covering all important
polymer related information from the patent
– both generic and specific concepts are indexed
• Indexing contains information not present in the
Derwent online abstract
– generates unique hits compared to text searching, IPC’s
etc.
5
WHY USE POLYMER INDEXING [1]
• The enhanced Polymer Indexing system was created in
conjunction with the main users of the product
– It is the system they said would meet their needs for searching
polymer related patent information
• Searching Polymer Indexing allows you to make use of our
subject experts analysis and understanding of the patent
– The analyst will read through the patent document and identify what
the key polymer related concepts are and apply the relevant codes
– So unlike keyword searching you don’t get hits based on trivial
references to a concept or cases where it says in the patent
anything except that concept
• For example searching on the word polyethylene would give you a hit on
a patent which stated it used any polyolefin other than polyethylene
6
WHY USE POLYMER INDEXING [2]
• The polymer indexing system utilises a unique
code linking system to ensure you only get hits
when concepts which are directly related are
mentioned so you get a more focused answer set
with little or no noise
– For instance with most systems a patent talking about an
item of clothing made out of polyester wrapped in a
polypropylene sheet would simply code the 4 concepts,
polypropylene, polyester, sheet & clothing
• Polymer indexing codes clothing linked to polyester & sheet
linked to polypropylene so you would not get a hit on a patent
about a polyester sheet or polypropylene clothing
7
HELP IS AVAILABLE
• Thomson Reuters search services can help you
create suitable search strategies utilizing polymer
indexing
• For occasional queries you can also contact our
help desk who can help you draw up a search
strategy
8
ENHANCED POLYMER INDEXING SYSTEM
• Replaced Plasdoc Coding
• Coverage starts from update 199332
• Both ‘old’ and ‘new’ indexing available from
update 199332 to 199445
• Enhanced Polymer Indexing ONLY from
update 199501 to date
9
INFORMATION INDEXED
• All polymer related information is indexed from:
– patent claims
– DWPI documentation abstract
– claims related example
10
STRUCTURAL INFORMATION INDEXED
CODE FORMAT
• Polymer Formers
(Rnnnnn, Gnnnn)
– i.e. monomers and condensants
• Polymer Types
(Pnnnn)
• Modified Polymers
(Mnnnn)
• Natural Polymers
(Rnnnnn, Gnnnn)
• Chemicals
(Rnnnnn, Gnnnn)
• Modifying Agents
(Rnnnnn, Gnnnn)
• Chemical Aspects
(Dnn, Dnnn, Enn, Fnn, Fnnn)
– i.e. chemical fragment codes
11
NON-STRUCTURAL INFORMATION INDEXED
CODE FORMAT
• Novelty Descriptors
(NDnn)
• Universal Terms
(Knnnn)
• Polymer Descriptors
(Hnnnn)
– e.g. thermoplastic, graft copolymer
• Shape & Form
(Snnnn)
– e.g. fibre, powder, foam
• Additive Type
(Annn)
• Catalyst Type
(Cnnn)
12
NON-STRUCTURAL INFORMATION INDEXED
CODE FORMAT
• Chemical Processes
(Lnnnn)
• Physical Operations
(Nnnnn)
• Equipment
(Jnnnn)
• Properties
(Bnnnn)
• Polymer Applications
(Qnnnn)
13
NOT COVERED
• Starting materials and intermediates for
polymer formers and additives
• Chemical processes for catalyst production
• Generic or Markush Modifying Agents
• Starting materials, chemical processes,
intermediates, or catalysts for modifying agent
production
• Compounds present which are not additives,
catalysts or modifying agents for the polymer
– e.g. a cosmetic containing vitamin E and
carboxymethylcellulose
14
SPECIFIC COMPOUND NUMBERS - SCN
• Common fully defined compounds have their own
codes - SCNs
– code format: Rnnnnn
– e.g. R24001 - sodium acrylate
• All polymer formers are indexed either by SCNs
or generic codes (Gnnnn)
• As each SCN has a corresponding DCR number
this is auto-posted in the polymer indexing
– This means you can search on the DCR number instead
of the SCN if you wish
15
HIERARCHICAL STRUCTURE OF CODES
Polymer Formers
G0022 Monoolefinic
......
G0260
G0271
NT Acrylics monoolefinic
NT Acrylic acids monoolefinic
‘Including Salts thereof’
G0282
NT Acrylic acid + salts
‘Monoolefinic only’
R00446
NT Acrylc acid
R24001
NT Sodium acrylate
R24000
NT Potassium acrylate
G0293
NT Acrylic acid salt, other
NT - Narrower Term
16
AUTO-POSTING
• In addition to the codes chosen by the indexer,
the online record contains related codes that are
automatically indexed……
• Two types of auto-posting:
– Up-posting
• all broader codes further up the hierarchy from the
indexed code are automatically indexed
– Cross-posting
• related codes from other hierarchies are additionally
indexed
• Benefit - easy generic searching
17
UP-POSTING
Additives
A566
Surfactant
......
A624
NT Dispersant
(+ A566 auto-posted)
A635
NT Emulsifier
(+ A566, A624 auto-posted)
A646
NT Protective colloid
(+ A566, A624 auto-posted)
18
CROSS-POSTING
R24001 Sodium Acrylate CH2=CHCOONa
All relevant chemical aspect codes are auto-posted:
D01
D26
D12
D10
D53
D51
D58
D61
D83
F36
F35
Na
1A
Organic
Acrylic unsaturated chain (96)
Unsaturated chain
Aliphatic chain
Monoolefinic unsaturation
Unsaturation containing
Terminal olefinic unsaturation
Salt/Complex
Carbon Count
Monocarboxylic acid (salt)
Carboxylic acid (salt)
Sodium
Group 1A
19
LINKING [1]
• Related codes are indexed together in distinct
online sub-fields
• Three different types of sub-field are used, each
level of sub-field is searchable with an online
proximity operator
– three 'levels of linking', referred to as level 1, level 2
and level 3
• Related codes can be searched together in the
way that they were indexed, maximising
accuracy and minimising noise
20
LINKING [2]
• Each separate polymer concept is linked to its
associated terms (additives, catalysts,
properties, applications etc.) to form a LINKING
GROUP
• There may be several linking groups in the
online record
• Each linking group is separated from the other
linking groups
21
LINKING [3]
• Example 1 - A patent describing a new bottle made from
polyethylene terephthalate and having a cap made from
polyolefin e.g. polypropylene or ethylene copolymer.
This patent has two polymer concepts (bottle and cap)
and so would be indexed as two linking groups.
• Example 2 - A patent for a new tri-layer film, the
outermost layer is heat resistant polyamide, the middle
layer is aluminium and the inner layer is impermeable
PVC.
Again this patent has two polymer concepts (outer layer
and inner layer), so two linking groups would be made.
22
LINKING [4]
• All codes within a linking group are linked
together at LEVEL 3
• LEVEL 1 and LEVEL 2 linking are used to
indicate closely related codes within the linking
group
– e.g. 'graft copolymer' linked to 'acrylonitrile' and
'butadiene'
• To search for codes from different linking groups
the AND operator must be used
23
THREE LEVELS OF LINKING
• Level 3 - Widest level - Linking group
– links related substances
• e.g. polymer with additive(s)
– links polymer with properties and applications
• Level 2 - Middle level - Indexing 'paragraph' for each
substance
– links a compound with its function or shape & form
– links co-monomers in a copolymer
• Level 1 - Tightest level - Indexing 'sentence' linking
Chemical Aspect codes
24
LINKING GROUP EXAMPLE
• Polymer composition
– styrene-maleic anhydride binary copolymer
– calcium carbonate filler
– zinc stearate lubricant
– granulation into a powder
• Linking diagram
– to help visualise the linking levels
• Format for the online record
– what the indexing looks like online
25
LINKING DIAGRAM
3
2
1 Styrene
1 Maleic anhydride
Binary copolymer
2
Filler
1 Calcium carbonate
Granulating
Powder
2
Lubricant
1 Zinc stearate
Filled resin
26
27
New STN
27
28
Three linking operators on new STN
Linking level
New STN Proximity operator
(3) (widest)
(U1)
(2) (middle)
(U2)
(1) (tightest)
(U3)
28
29
Linking operator example on new STN
• Styrene (Level 2) Maleic Anhydride (Level 2) Binary
Copolymer (Level 2) Powder
• Calcium Carbonate (Level 2) Filler
• Zinc Stearate (Level 2) Lubricant
• Granulating (Level 3) Filled Resin (Level 3) above
sets
29
30
Linking operator example on new STN (cont.)
• Styrene (U2) Maleic Anhydride (U2) Binary
Copolymer (U2) Powder
• Calcium Carbonate (U2) Filler
• Zinc Stearate (U2) Lubricant
• Granulating (U1) Filled Resin (U1) above sets
30
31
Linking operator example on new STN (cont.)
Styrene
Maleic Anhydride
Binary Copolymer
Powder
Calcium Carbonate
Filler
Zinc Stearate
Lubricant
Granulating
Filled Resin
R00708
R00843
H0022
S1514
R01278
A237
R01377
A340
N6144
K9449
The Derwent Polymer
Indexing Hierarchy was
used to find the
appropriate codes.
31
32
Linking operator example on new STN (cont.)
(R00708 (U2) R00843 (U2) H0022 (U2) S1514)/PLE
(R01278 (U2) A237)/PLE
(R01377 (U2) A340)/PLE
(N6144 (U1) K9449)/PLE
L1 (U1) L2 (U1) L3 (U1) L4
Note: Search the Derwent polymer codes in DWPI
on new STN by using the /PLE search qualifier.
32
33
33
34
Why did this search retrieve zero hits?
• The strategy was too specific
• Revise strategy to broaden as needed
‒
‒
‒
‒
Search polymer without powder concept?
Any filler?
Any lubricant?
Remove filler and lubricant concepts altogether?
34
35
35
36
36
LEVELS OF LINKING (STN)
• Sub-fields are marked e.g. [1.1], [1.2], [1.3], [2.1], [2.2], [3.1] etc.
– Level 3 - the number to the left of the full-stop (period) indicates the linking
group number
• e.g. [1.1], [1.2] and [1.3] belong to linking group 1;
[2.1] and [2.2] belong to linking group 2
• accessed using the (U1) proximity operator
– Level 2 - the number to the right of the full-stop (period) indicates the
paragraph number within the linking group
• e.g. [1.3] is paragraph 3 in linking group 1
• accessed using the (U2) operator
– Level 1 - within the paragraph, sentences of indexing start and stop with
the semi-colon character ;
• e.g. ; R01278 D00 F44 C- 4A O- 6A Ca 2A ;
• accessed using the (U3) operator
37
LINKING LEVEL TABLE
• Example – Polymer Type codes link to Additive codes at level 3
FACET
Polymer
Descriptor
Hnnnn
H0146
H0215
H0204
Polymer Former
Rnnnnn/Gnnnn
Polymer Type
Pnnnn
Natural Polymer
Rnnnnn/Gnnnn
Polymer Type Polymer Former Additive Catalyst Modifying Agent
Pnnnn
Rnnnnn Gnnnn
Annn
Cnnn
2
2
2
2
2
1
1
N/A
2
1
1
1
3†
N/A
N/A
N/A
3†
N/A
N/A
N/A
3†
N/A
N/A
N/A
2
2
2
3†
3†
3†
AND#
2
2
3†
3†
3†
2
2
2
3†
3†
3†
38
ADDITION POLYMERS
• All addition polymers have monomer-based indexing, e.g.
– polymethylmethacrylate:
(R00479 (2) H0000) i.e. methylmethacrylate + homopolymer
– ethylene–propylene copolymer:
(R00326 (2) R00964 (2) H0022) i.e. ethylene + propylene +
binary copolymer
• For ease of searching, common polymers are also
searchable as a single code, e.g.
– polymethylmethacrylate: P0113
– ethylene-propylene copolymer: P1285
39
40
40
CONDENSATION POLYMERS
• Monomers/condensants are only indexed when
stated in the patent, e.g.
– polyethyleneterephthalate from ethylene glycol and
terephthalic acid is indexed as:
(P0884 (2) R00822 (2) R00702 (2) H0022)
i.e. PET + ethylene glycol + terephthalic acid + binary
copolymer
– PET with no further information is indexed P0884 only
– for all references to PET, just search P0884
41
42
42
CONDENSATION POLYMERS
• When no polymer formers are stated, the polymers
are indexed as a structural repeat unit (SRU), e.g.
O
O
O
O
n
Indexed as (P1978 (1) D01 (1) D14 (1) D19 (1) D32 (1) D76 (1) D50 (1)
D93 (1) E21 (1) F90)
i.e. polyester polymer type code + chemical aspects for the repeat unit
43
44
44
CONDENSATION POLYMERS
• If polymer formers are stated, these are indexed
• e.g. if the polymer from the previous slide is
prepared from terephthalic acid and 1,4cyclohexane diol, the indexing is:
(P1978 (2) R00702 (2) (G1069 (1) D01 (1) D14 (1) D31 (1) D76 (1) D50
(1) D86 (1) F28) (2) H0022)
i.e. polyester polymer type + terephthalic acid + (other diol + chemical
aspects for cyclohexane diol) + binary copolymer
• For complete retrieval, search both SRU and
monomer based indexing
45
46
46
SEARCHING FOR ADDITIVES
• Additives can be searched
– by chemical composition
– by function
Boric Acid heat stabiliser
R01894 (2) A511
47
SEARCHING FOR CATALYSTS
• Catalysts can be searched:
– by chemical composition
– by type
– by function
Potassium persulphate free radical initiator
R01737 (2) C088
48
BUILDING SEARCH STRATEGIES [1]
• Create separate search statements for each
component
– for polymeric components
– for non-polymeric components
• Combine the statements together with the
appropriate proximity operators
49
BUILDING STRATEGIES [2]
Suspension copolymerisation of vinyl chloride and an alphaolefin using a dispersant and an azo catalyst
Polymer:
R00338 (2) G0033 (2) H0022 (2) L2675
Additive:
A624
Catalyst:
F13 (2) C293
Combine statements together:
L1 (3) L2 (3) L3
50
51
Derwent Polymer tips on new STN
• Put L- (chemical process) and Q- (use) codes in
double quotes “…” for searching
‒ For this example, search L2675 as “L2675”
• DCR hit structures for monomers and-or specific
compounds (R-codes) are automatically included in
DWPI detailed displays
- Under Related DCR-Structures
51
52
52
53
53
54
54
55
55
MANUALS & USER AIDS
• Available in print or as pdf download from:
http://ip-science.thomsonreuters.com/support/patents/userguides/polymerguides/
–
–
–
–
–
Polymer Indexing System Description
Polymer Indexing Hierarchy
Polymer Indexing Reference Manual
Polymer Indexing Dictionary
Polymer Indexing Thesaurus
• PILOT v3.0 & User Guide
– Polymer Indexing Language Online Translation
– software to help construct a strategy for the Enhanced Polymer Indexing
codes, and automatically create the corresponding strategy for Plasdoc
codes
56
MANUAL CODES
• Manual codes cover essentially the same concepts
as the enhanced polymer indexing but differ in the
following ways
– Are generally broader in scope than the most specific
polymer indexing codes
– Focus on the broadest terms used
– All codes applied to the document are stored in the same
field with no more focused linking
– Are applied to a wider range of patents than polymer
indexing
SECTION A MANUAL CODES
• A01 : Monomers & Condensants
• A02 : Polymerisation controllers
• A03 : Natural Polymers
• A04 : Addition Polymers
• A05 : Condensation Polymers
• A06 : Inorganic polymers
• A07 : Polymer blends, Aqueous Dispersions
• A08 : Additives
SECTION A MANUAL CODES CONTINUED
• A09 : Properties, Analysis, Testing, Control
• A10 : Polymerisation, Polymer Modification
• A11 : Processing Polymers including equipment
• A12 : Polymer Applications
TIPS FOR SEARCHING POLYMER MANUAL
CODES [1]
• Common polymers such as polyethylene, nylons,
polyesters & polyurethanes have different codes for
different invention types
– Production
– Fabrication
– Uses
– Treatment
– Compositions
• Common Condensation polymers may also be classified
according to the condensants they are formed from
TIPS FOR SEARCHING POLYMER MANUAL
CODES [2]
• A09 property codes are only applied when that property is
of exceptional importance
– Properties resulting from the presence of functional additives are
not coded here but the additive is coded in A08
– Properties that are a result of polymer structure are coded here
• Synthetic polymers used in pharmaceutical &
agrochemical patents also code in Section B04-C & C04-C
respectively
• Polysaccharides used in pharmaceutical & agrochemical
patents also code in Section B04-C & C04-C respectively
POLYMERS IN DCR
• Around 340 common polymers have their own
DCR records which are cited whenever that
substance is mentioned in a patent indexed in CPI
sections B, C or E
• This has been done since 1999/2000
• The records can be found by searching for the
polymer in the chemical name field
– This should include any common synonyms or trade
names
• Search on polymers in the substance descriptor
(/SD) field should pull up the full list
TYPICAL POLYMER DCR RECORD
CLASSES OF POLYMER IN DCR
• Cyclodextrins
• Dendrimers
• Glycoproteins
• Lipoproteins
• Polymers (other than specific types listed here)
• Polysacchsardies
• Proteins
• Silicones
THANK YOU!
Customer Service
For subscriptions, pricing and renewals
http://ip-science.thomsonreuters.com/support/
Technical Support
For access, content, searching, troubleshooting
and technical issues.
http://ip-science.thomsonreuters.com/techsupport
Training
For Thomson Innovation training options.
http://ip.thomsonreuters.com/training/ti/
Contact Us
US, Canada & Latin America
Phone: +1 800 336 4474
[email protected]
Europe, Middle East and Africa
Tel: +44 (0)20 7433 4000
[email protected]
Japan
Phone: +81 3 5218 6500
[email protected]
Asia Pacific (Singapore office)
Phone: +65 6411 6888
ts.support.asia@thomsonreuters
.com
65