EP0119699B1
Expired / Lapsed
EP
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Aqueous latex copolymer composition
Assignee: Imperial Chemical Industries Ltd
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Filing: 1984-01-30
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Granted: 1988-06-22
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Expires: 2004-01-30
Abstract
No abstract record available.
Inventors
- 👤 John Christopher Padget
- 👤 Donald Hugh Mcilrath
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 13:26
CPC Classifications
C; C09; C09J; C09J127/00; C09J127/02; C09J127/04; C09J127/08; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/08; C09J157/00; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
140 words
An aqueous latex composition comprising at least one copolymer A and at least one copolymer B wherein: A is an amorphous copolymer comprising polymerised units (a) of at least one monomer selected from alkyl acrylates and methacrylates having 1 to 12 carbon atoms in the alkyl group, vinylidene chloride, acrylonitrile, styrene, vinyl acetate, and vinyl ethyl ether, and B is a crystalline copolymer comprising polymerised units of vinylidene chloride; and wherein the dry weight ratio of the at least one copolymer A: the at least one copolymer B is from 95:5 to 10:90; characterised in that: said copolymer A includes polymerised units of at least one internally plasticising comonomer, and has Tg in the range -50 to <0°C; and said copolymer B has a Tg which is not more than 30°C; and wherein said composition provides contactable layers after drying.
Claim 2
Dependent Claim
140 words
An aqueous latex composition comprising at least one copolymer A and at least one copolymer B wherein: A is an amorphous copolymer comprising polymerised units (a) of at least one monomer selected from alkyl acrylates and methacrylates having 1 to 12 carbon atoms in the alkyl group, vinylidene chloride, acrylonitrile, styrene, vinyl acetate, and vinyl ethyl ether, and B is a crystalline copolymer comprising polymerised units of vinylidene chloride; and wherein the dry weight ratio of the at least one copolymer A: the at least one copolymer B is from 95:5 to 10:90; characterised in that: said copolymer A includes polymerised units of at least one internally plasticising comonomer, and has Tg in the range -50 to <0°C; and said copolymer B has a Tg which is not more than 30°C; and wherein said composition provides contactable layers after drying.
Claim 3
Dependent Claim
30 words
An aqueous latex composition according to Claim 1 characterised in that at least one of said at least one copolymer A in said composition comprises polymerised units of vinyl chloride.
Claim 4
Dependent Claim
39 words
An aqueous latex composition according to either Claim 1 or Claim 2 characterised in that at least one of said at least one copolymer A in said composition comprises polymerised units of at least one copolymerisable ethylenically unsaturated acid.
Claim 5
Dependent Claim
92 words
An aqueous latex composition according to any one of the preceding claims characterised in that said at least one copolymer B comprises polymerised units of vinylidene chloride and polymerised units (b) of at least one comonomer selected from alkyl acrylates and methacrylates having 1 to 12 carbon atoms in the alkyl group, alkoxyalkyl acrylates and methacrylates having 1 to 12 carbon atoms in the alkyl group, vinyl chloride, styrene, acrylonitrile, vinyl acetate, vinyl ethyl ether, ethylene, cis and trans 1,3-butadiene, cis and trans isoprene, cis and trans chloroprene, 1-decene, 1-pentene and 1-octene.
Claim 6
Dependent Claim
39 words
An aqueous latex composition according to any one of the preceding claims characterised in that at least one of said at least one copolymer B in said composition comprises polymerised units of at least one copolymerisable ethylenically unsaturated acid.
Claim 7
Dependent Claim
37 words
An aqueous latex composition according to any one of the preceding claims characterised in that the dry weight ratio of the at least one copolymer A: the at least one copolymer B is from 90:10 to 10:90.
Claim 8
Dependent Claim
31 words
An aqueous latex composition according to any one of the preceding claims characterised in that the Tg of the at least one copolymer A is in the range -40 to -5°C.
Claim 9
Dependent Claim
83 words
An aqueous latex composition according to any one of the preceding claims characterised in that the at least one copolymer A comprises 10 to 100 weight of polymerised units (a), 0 to 90 weight % of polymerised units of at least one internally plasticising comonomer other than one or ones forming polymerised units within the scope of (a), 0 to 50 weight % of polymerised units of vinyl chloride, and 0 to 10 weight % of at least one copolymerisable ethylenically unsaturated acid.
Claim 10
Dependent Claim
76 words
An aqueous latex composition according to any one of the preceding claims characterised in that the at least one copolymer A comprises 10 to 70 weight % of polymerised units of vinylidene chloride, 30 to 90 weight % of polymerised units of at least one internally plasticising comonomer, 0 to 50 weight % of polymerised units of vinyl chloride, and 0 to 10 weight % of polymerised units of at least one copolymerisable ethylenically unsaturated acid.
Claim 11
Dependent Claim
28 words
An aqueous latex composition according to Claim 9 characterised in that the proportion of polymerised units of vinylidene chloride in copolymer A is 20 to 60 weight %.
Claim 12
Dependent Claim
37 words
An aqueous latex composition according to either Claim 9 or Claim 10 characterised in that the proportion of polymerised units of said at least one internally plasticising comonomer in copolymer A is 40 to 80 weight %.
Claim 13
Dependent Claim
34 words
An aqueous latex composition according to any one of Claims 9 to Claims 11 characterised in that the proportion of polymerised units of vinyl chloride in copolymer A is 0 to 20 weight %.
Claim 14
Dependent Claim
39 words
An aqueous latex composition according to any one of Claims 9 to 12 characterised in that the proportion of polymerised units of said at least one copolymerisable ethylenically unsaturated acid in copolymer A is 0.1 to 8 weight %.
Claim 15
Dependent Claim
33 words
An aqueous latex composition according to any one of the preceding claims characterised in that the polymerised units of at least one internally plasticising comonomer in copolymer A are derived from n-butyl acrylate.
Claim 16
Dependent Claim
29 words
An aqueous latex composition according to any one of the preceding claims characterised in that the copolymer A has been prepared in the presence of a chain transfer agent.
Claim 17
Dependent Claim
31 words
An aqueous latex composition according to any one of the preceding claims characterised in that the Tg of the at least one copolymer B is in the range -50 to 30°C.
Claim 18
Dependent Claim
59 words
An aqueous latex composition according to any one of Claims 4 to 16 characterised in that the at least one copolymer B comprises 70 to 98 weight % of polymerised units of vinylidene chloride, 2 to 30 weight % of polymerised units (b), and 0 to 10 weight % of polymerised units at least one copolymerisable ethylenically unsaturated acid.
Claim 19
Dependent Claim
28 words
An aqueous latex composition according to Claim 17 characterised in that the proportion of polymerised units of vinylidene chloride in copolymer B is 80 to 95 weight %.
Claim 20
Dependent Claim
30 words
An aqueous latex composition according to either Claim 17 or Claim 18 characterised in that the proportion of polymerised units (b) in copolymer B is 2 to 20 weight %.
Claim 21
Dependent Claim
39 words
An aqueous latex composition according to any one of Claims 17 to 19 characterised in that the proportion of polymerised units of the at least one copolymerisable ethylenically unsaturated acid in copolymer B is 0.1 to 8 weight %.
Claim 22
Dependent Claim
31 words
An aqueous latex composition according to any one of the preceding claims characterised in that the at least one copolymer B includes polymerised units of at least one internally plasticising comonomer.
Claim 23
Dependent Claim
41 words
An aqueous latex composition according to any one of the preceding claims characterised in that the at least one copolymer B includes polymerised units of at least one comonomer (other than vinylidene chloride) which comonomer is not an internally plasticising comonomer.
Claim 24
Dependent Claim
49 words
An aqueous latex composition according to any one of Claims 4 to 22 characterised in that the polymerised units (b) in copolymer B are derived from at least one monomer selected from alkyl acrylates and methacrylates having 1 to 12 carbon atoms in the alkyl group and vinyl chloride.
Claim 25
Dependent Claim
42 words
An aqueous latex composition according to any one of the preceding claims characterised in that copolymer A and/or copolymer B comprises polymerised units of at least one copolymerisable ethylenically unsaturated acid which acid is an ethylenically unsaturated carboxylic acid or sulphonic acid.
Claim 26
Dependent Claim
20 words
An aqueous latex composition according to Claim 24 characterised in that the acid is an aliphatic alpha, beta-unsaturated carboxylic acid.
Claim 27
Dependent Claim
37 words
An aqueous latex composition according to any one of the preceding claims characterised in that the copolymer A and/orthe copolymer B comprises polymerised units of at least one type of comonomer to provide a partial cross-linking functionality.
Claim 28
Dependent Claim
28 words
An aqueous latex composition according to Claim 26 characterised in that said polymerised units to provide a cross-linking functionality effect cross-linking during the polymerisation to form the copolymer.
Claim 29
Dependent Claim
24 words
An aqueous latex composition according to Claim 26 characterised in that said polymerised units to provide a cross-linking functionality provide a latent cross-linking functionality.
Claim 30
Dependent Claim
29 words
An aqueous latex composition according to Claim 28 characterised in that the latent cross-linking provided by said polymerised units requires the inclusion of a cross-linking agent in the composition.
Claim 31
Dependent Claim
35 words
An aqueous latex composition according to any one of the preceding claims characterised in that said composition includes at least one tackifying resin which tackifying resin has been added in the form of a dispersion.
Claim 32
Dependent Claim
20 words
The use of an aqueous latex composition according to any one of the preceding claims as a contact adhesive-forming composition.
References Cited (Backward Citations)
No citation records indexed.
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