Patent EP0171850A1 successfully refreshed from Google Patents.
EP0171850A1
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Use of polyaminoamide resins as adhesion promoters of PVC plastisols
Assignee: Chem-Plast SpA
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Filing: 1985-07-26
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Granted: —
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Expires: 2005-07-26
Abstract
Abstract The object of the invention are adhesion promoters for plastisols of polyvinylchloride polymers or copolymers,' characterized in that they are constituted by polyaminoamidic resins obtained by means of the condensation of: - 1 equivalent of carboxylic acids, obtained by polymerization of unsaturated fatty acids, of composition comprised within the following ranges: 0 - 2% monomers, 10 - 50% dimers, 50 - 90% trimers, with - from 1.0 to 2.2 equivalents of an heterocyclic amine of, general formula wherein R can be H or an alkylamino group -R'-NH 2 , wherein R' is a saturated alifatic chain.
Inventors
- 👤 Roberto Leoni
- 👤 Angela Rossini
- 👤 Massimo Taccani
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 20:37
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/34; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06; C08L77/00; C08L77/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
Adhesion promoters for plastisols of polymers or copolymers of polyvinyl-chloride, characterized in that they are constituted by polyaminoamide resins as obtained by means of the condensation of: - 1 equivalent of polycarboxylic acids, as obtained by means of the polymerization of unsaturated fatty acids, of composition comprised within the following ranges: 0 - 2% monomers, 10 - 50% dimers, 50 - 90% trimers, with - from 1.0 to 2.2 equivalents of an heterocyclic amine of the general formula wherein R can be H or an akylamino group -R'-NH 2 , wherein R' is a saturated aliphatic chain.
Claim 2
Dependent Claim
97 words
Adhesion promoters for plastisols of polymers or copolymers of polyvinyl-chloride, characterized in that they are constituted by polyaminoamide resins as obtained by means of the condensation of: - 1 equivalent of polycarboxylic acids, as obtained by means of the polymerization of unsaturated fatty acids, of composition comprised within the following ranges: 0 - 2% monomers, 10 - 50% dimers, 50 - 90% trimers, with - from 1.0 to 2.2 equivalents of an heterocyclic amine of the general formula wherein R can be H or an akylamino group -R'-NH 2 , wherein R' is a saturated aliphatic chain.
Claim 3
Dependent Claim
35 words
Adhesion promoters for plastisols according to claim 1, characterized in that the polycarboxylic acids us ed are obtained from unsaturated fatty acids of 18 carbon atoms and have the following composition: 15% dimers, 85% trimers.
Claim 4
Dependent Claim
18 words
Adhesion promoters for plastisols according to claim 1, characterized in that the heterocyclic amine use- ed is piperazine.
Claim 5
Dependent Claim
24 words
Adhesion promoters for plastisols according to claim 3, characterized in that the equivalent ratio of polycarboxylic acid to amine is of 1 to 2.
Claim 6
Dependent Claim
16 words
Adhesion promoters for plastisols according to claim 1, characterized in that the heterocyclic amine is aminoethylpiperazine.
Claim 7
Dependent Claim
27 words
Adhesion promoters for plastisols according to claim 5, characterized in that the equivalent ratio of po lycarboxylic acid to the heterocyclic amine is of 1 to 1.2.
Claim 8
Dependent Claim
18 words
Adhesion promoters for plastisols according to claim 1, characterized in that they are dissolved in an organic solvent.
Claim 9
Dependent Claim
32 words
Adhesion promoters for plastisols according to claim 7, characterized in that they are dissolved at a concentration comprised within the range of from 10% to 95%, as expressed as concentration by weight.
Claim 10
Dependent Claim
21 words
Plastisols characterized in that they contain as the adhesion promoter a polyaminoamide resin, as defined in any one of preceding claims.
Claim 11
Dependent Claim
60 words
Process for the preparation of polyaminoamide resins according to claim 1, characterized in that it comprises the steps of condensation of said polycarboxylic acid and of said heterocyclic amine at a temperature not lower than 120°C for a time long enough to eliminate reaction water; of applying a vacuum until the reaction is completed, and of withdrawal of unreacted amine.
References Cited (Backward Citations)
US3377303A
Cited
FR2141878A1
Cited
FR2253812A1
Cited
FR2372862A1
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EP0084111A1
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EP0098372A1
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