Reactive plastisol dispersion

Claim 2

A reactive plastisol dispersion comprising (1) a polyvinyl acetal thermoplast in particle form having a particle size in the range from about 0.1 to about 1,500 microns; (2) a liquid plasticizer member of the group consisting of (a) at least one ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR15## wherein R is H or CH 3 , R 1 is an organic moiety and n is 1 or more, (b) at least one unsaturated polyester containing the group: ##STR16## wherein R 2 and R 3 are organic moieties, x is 0-20 and y is 1-20; and (c) a mixture of (a) and (b), said liquid plasticizer being present in an amount ranging from 50 to 2,000 parts per 100 parts of the thermoplast by weight; and (3) 0.0005 to 30% by weight of the plasticizer of a photoinitiator.

Claim 3

The process of forming a solidified homogeneous mass which comprises admixing a reactive plastisol dispersion comprising (1) a polyvinyl acetal thermoplast in particle form having a particle size in the range from about 0.1 to about 1,500 microns and (2) a liquid plasticizer member of the group consisting of (a) at least one ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR17## wherein R is H or CH 3 , R 1 is an organic moiety and n is 1 or more, (b) at least one unsaturated polyester containing the group: ##STR18## wherein R 2 and R 3 are organic moieties, x is 0-20 and y is 1-20; and (c) a mixture of (a) and (b), said liquid plasticizer being present in an amount ranging from 50 to 2,000 parts per 100 parts of the thermoplast by weight; and (3) 0.0005 to 30% by weight of the plasticizer of a photoinitiator and, thereafter, heating the admixture for a time sufficient to flux the mass.

Claim 4

The process of forming a solidified homogeneous mass which comprises admixing a reactive plastisol dispersion comprising (1) a polyvinyl acetal thermoplast in particle form having a particle size in the range from about 0.1 to about 1,500 microns and (2) a liquid plasticizer member of the group consisting of (a) at least one ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR17## wherein R is H or CH 3 , R 1 is an organic moiety and n is 1 or more, (b) at least one unsaturated polyester containing the group: ##STR18## wherein R 2 and R 3 are organic moieties, x is 0-20 and y is 1-20; and (c) a mixture of (a) and (b), said liquid plasticizer being present in an amount ranging from 50 to 2,000 parts per 100 parts of the thermoplast by weight; and (3) 0.0005 to 30% by weight of the plasticizer of a photoinitiator and, thereafter, heating the admixture for a time sufficient to flux the mass.

Claim 5

A composition comprising a reactive, solid, homogeneous, fluxed plastisol formed from (1) a polyvinyl acetal thermoplast in particle form having a particle size in the range from about 0.1 to about 1,500 microns and (2) a liquid plasticizer member of the group consisting of (a) at least one ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR19## wherein R is H or CH 3 , R 1 is an organic moiety and n is 1 or more, (b) at least one unsaturated polyester containing the group: ##STR20## wherein R 2 and R 3 are organic moieties, x is 0-20 and y is 1-20; and (c) a mixture of (a) and (b), said liquid plasticizer being present in an amount ranging from 50 to 2,000 parts per 100 parts of the thermoplast by weight; and (3) 0.0005 to 30% by weight of the plasticizer of a photoinitiator.

Claim 6

A composition comprising a reactive, solid, homogeneous, fluxed plastisol formed from (1) a polyvinyl acetal thermoplast in particle form having a particle size in the range from about 0.1 to about 1,500 microns and (2) a liquid plasticizer member of the group consisting of (a) at least one ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR19## wherein R is H or CH 3 , R 1 is an organic moiety and n is 1 or more, (b) at least one unsaturated polyester containing the group: ##STR20## wherein R 2 and R 3 are organic moieties, x is 0-20 and y is 1-20; and (c) a mixture of (a) and (b), said liquid plasticizer being present in an amount ranging from 50 to 2,000 parts per 100 parts of the thermoplast by weight; and (3) 0.0005 to 30% by weight of the plasticizer of a photoinitiator.

Claim 7

The dispersion of claim 1 wherein the polyvinyl acetal is polyvinyl formal.

Claim 8

The dispersion of claim 1 wherein the polyvinyl acetal is polyvinyl butyral.

Claim 9

The dispersion of claim 1 wherein the thermoplast is polyvinyl formal and the plasticizer is (a).

Claim 10

The dispersion of claim 1 wherein the thermoplast is polyvinyl formal and the plasticizer is (b).

Claim 11

The process of claim 2 wherein the polyvinyl acetal is polyvinyl formal.

Claim 12

The process of claim 2 wherein the polyvinyl acetal is polyvinyl butyral.

Claim 13

The process of claim 2 wherein the thermoplast is polyvinyl formal and the plasticizer is (a).

Claim 14

The process of claim 2 wherein the thermoplast is polyvinyl formal and the plasticizer is (b).

Claim 15

The composition of claim 3 wherein the polyvinyl acetal is polyvinyl formal.

Claim 16

The composition of claim 3 wherein the polyvinyl acetal is polyvinyl butyral.

Claim 17

The composition of claim 3 wherein the thermoplast is polyvinyl formal and the plasticizer is (a).

Claim 18

The composition of claim 3 wherein the thermoplast is polyvinyl formal and the plasticizer is (b).

Claim 19

The process of forming a thermoset material which comprises exposing the reactive solid, homogeneous, fluxed plastisol of claim 3 to UV radiation for a time sufficient to form a thermoset material.