US4717746A — Adhesion promoters of plastisols, capable of main…

Claim 1

Independent Claim 106 words

Adhesion promoters for plastisols of polymers or copolymers of polyvinyl chloride, characterized in that they are constituted by fluid polyaminoamide resins having decolorization resistance when associated polymers are subject to heat treatment, said polyaminoamide resins being 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 ##STR3## wherein R can be H or an alkylamino group --R'--NH 2 , wherein R' is a saturated aliphatic chain.

Claim 2

Dependent Claim 106 words

Adhesion promoters for plastisols of polymers or copolymers of polyvinyl chloride, characterized in that they are constituted by fluid polyaminoamide resins having decolorization resistance when associated polymers are subject to heat treatment, said polyaminoamide resins being 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 ##STR3## wherein R can be H or an alkylamino group --R'--NH 2 , wherein R' is a saturated aliphatic chain.

Claim 3

Dependent Claim 34 words

Adhesion promoters for plastisols according to claim 1, characterized in that the polycarboxylic acids used are obtained from unsaturated fatty acids of 18 carbon atoms and have the following composition: 15% dimers, 85% trimers.

Claim 4

Dependent Claim 17 words

Adhesion promoters for plastisols according to claim 1, characterized in that the heterocyclic amine used 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 26 words

Adhesion promoters for plastisols according to claim 5, characterized in that the equivalent ratio of polycarboxylic 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 101 words

Plastisols characterized in that they contain adhesion promoters in the form of a fluid polyaminoamide resin having decolorization resistance when associated polymers are subject to heat treatment, said polyaminoamide resins being 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 ##STR4## wherein R can be H or an alkylamino group --R'--NH 2 , wherein R' is a saturated aliphatic chain.

Claim 11

Dependent Claim 101 words

Plastisols characterized in that they contain adhesion promoters in the form of a fluid polyaminoamide resin having decolorization resistance when associated polymers are subject to heat treatment, said polyaminoamide resins being 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 ##STR4## wherein R can be H or an alkylamino group --R'--NH 2 , wherein R' is a saturated aliphatic chain.

Claim 12

Dependent Claim 143 words

Process for the preparation of fluid polyaminoamide resins having decolorization resistance when associated polymers are subject to heat treatment, said polyaminoamide resins being 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 ##STR5## wherein R can be H or an alkylamino group --R'--NH 2 , wherein R' is a saturated aliphatic chain, said process comprising the steps of effecting condensation of said polycarboxylic acid and of said heterocyclic amine at a temperature not lower than 120° C. and for a time long enough to eliminate reaction water, of applying a vacuum until the reaction is completed, and of withdrawl of unreacted amine.

Claim 13

Dependent Claim 143 words

Process for the preparation of fluid polyaminoamide resins having decolorization resistance when associated polymers are subject to heat treatment, said polyaminoamide resins being 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 ##STR5## wherein R can be H or an alkylamino group --R'--NH 2 , wherein R' is a saturated aliphatic chain, said process comprising the steps of effecting condensation of said polycarboxylic acid and of said heterocyclic amine at a temperature not lower than 120° C. and for a time long enough to eliminate reaction water, of applying a vacuum until the reaction is completed, and of withdrawl of unreacted amine.

Claim 14

Dependent Claim 27 words

Adhesion promoters according to claim 1 wherein said polymerized fatty acids and amines are in nonstoichiometric ratio which preserve free amine groups for promoting adhesion to plastisols.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1991-01-04	1991-07-06	1992-01-05	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1995-01-04	1995-07-06	1996-01-05	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1999-01-04	1999-07-06	2000-01-05	$7700.00	Window Closed / Lapsed

Adhesion promoters of plastisols, capable of maintaining plastisol color stable towards the effect of the application thermal treatment

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