Composition useful in making extensible films

Claim 1

A method of producing a solvent-soluble coating composition which comprises reacting: (1) from about 1 to 30 percent by weight of a saturated aliphatic or aromatic polyisocyanate; (2) from about 4 to 50 percent by weight of a hydroxyl-containing material selected from the group consisting of saturated aliphatic or aromatic polymeric diols having glass transition temperatures less than 50° C., saturated aliphatic or aromatic low molecular weight diols and mixtures thereof; (3) from about 2 to 20 percent by weight of a hydroxyalkyl ester of an ethylenically unsaturated carboxylic acid; (4) from about 1 to 20 percent by weight of a monomer selected from the group consisting of alkoxymethyl-containing ethylenically unsaturated amides, and ethylenically unsaturated blocked isocyanates which are capable of curing said coating composition through hydroxyl functionality of said reaction product and the isocyanate groups of said blocked isocyanates or the N-alkoxymethyl groups of said amide; (5) from about 25 to 90 percent by weight of an ethylenically unsaturated monomer or mixture of monomers different from (3) and (4); the equivalent ratio of isocyanate groups to hydroxyl groups in (1), (2) and (3) being between 1:1.1 and 1:9 so as to obtain an ungelled reaction product and introduce hydroxyl functionality into the reaction product; said coating composition being further characterized as being essentially free of unreacted NCO groups and ethylenic unsaturation and said coating composition being curable through reaction of the N-alkoxymethyl groups or the blocked isocyanate groups at times and temperatures sufficient for these groups to react with the hydroxyl functionality of said reaction product, said reaction being conducted by any of the following steps: (A) reacting the hydroxyalkyl ester with the polyisocyanate and subsequently reacting this product either consecutively or simultaneously with the hydroxyl-containing material and the monomer component (4) and (5); (B) reacting the hydroxyalkyl ester, the hydroxyl-containing material and the polyisocyanate and subsequently reacting this product with the monomer component (4) and (5); (C) reacting all the components (1), (2), (3), (4) and (5) together simultaneously; (D) reacting the polyisocyanate and the hydroxyl-containing material to form an isocyanate-terminated prepolymer and the prepolymer reacted consecutively or simultaneously with the hydroxyalkyl ester and the monomer component (4) and (5).

Claim 2

A method of producing a solvent-soluble coating composition which comprises reacting: (1) from about 1 to 30 percent by weight of a saturated aliphatic or aromatic polyisocyanate; (2) from about 4 to 50 percent by weight of a hydroxyl-containing material selected from the group consisting of saturated aliphatic or aromatic polymeric diols having glass transition temperatures less than 50° C., saturated aliphatic or aromatic low molecular weight diols and mixtures thereof; (3) from about 2 to 20 percent by weight of a hydroxyalkyl ester of an ethylenically unsaturated carboxylic acid; (4) from about 1 to 20 percent by weight of a monomer selected from the group consisting of alkoxymethyl-containing ethylenically unsaturated amides, and ethylenically unsaturated blocked isocyanates which are capable of curing said coating composition through hydroxyl functionality of said reaction product and the isocyanate groups of said blocked isocyanates or the N-alkoxymethyl groups of said amide; (5) from about 25 to 90 percent by weight of an ethylenically unsaturated monomer or mixture of monomers different from (3) and (4); the equivalent ratio of isocyanate groups to hydroxyl groups in (1), (2) and (3) being between 1:1.1 and 1:9 so as to obtain an ungelled reaction product and introduce hydroxyl functionality into the reaction product; said coating composition being further characterized as being essentially free of unreacted NCO groups and ethylenic unsaturation and said coating composition being curable through reaction of the N-alkoxymethyl groups or the blocked isocyanate groups at times and temperatures sufficient for these groups to react with the hydroxyl functionality of said reaction product, said reaction being conducted by any of the following steps: (A) reacting the hydroxyalkyl ester with the polyisocyanate and subsequently reacting this product either consecutively or simultaneously with the hydroxyl-containing material and the monomer component (4) and (5); (B) reacting the hydroxyalkyl ester, the hydroxyl-containing material and the polyisocyanate and subsequently reacting this product with the monomer component (4) and (5); (C) reacting all the components (1), (2), (3), (4) and (5) together simultaneously; (D) reacting the polyisocyanate and the hydroxyl-containing material to form an isocyanate-terminated prepolymer and the prepolymer reacted consecutively or simultaneously with the hydroxyalkyl ester and the monomer component (4) and (5).

Claim 10

A method of producing a solvent-soluble coating composition which comprises: (A) reacting: (1) from about 1 to 30 percent by weight of a saturated aliphatic or aromatic polyisocyanate; (2) from about 4 to 50 percent by weight of a hydroxyl-containing material selected from the group consisting of saturated aliphatic or aromatic polymeric diols having glass transition temperatures less than 50° C., saturated aliphatic or aromatic low molecular weight diols and mixtures thereof; (3) from about 2 to 20 percent by weight of a hydroxyalkyl ester of an ethylenically unsaturated carboxylic acid; (4) from about 25 to 90 percent by weight of at least one ethylenically unsaturated monomer different from (3); the equivalent ratio of isocyanate to hydroxyl groups in (1), (2) and (3) being between 1:1.1 and 1:9 so as to obtain an ungelled reaction product and introduce hydroxyl functionality into said reaction product; said reaction product being further characterized as being essentially free of unreacted NCO groups and ethylenic unsaturation; the reaction being conducted by any of the following steps: (a) reacting the hydroxyalkyl ester with the polyisocyanate and subsequently reacting this product either consecutively or simultaneously with a hydroxyl-containing material and the monomer component (4); (b) reacting the hydroxyalkyl ester, the hydroxyl-containing material and the polyisocyanate and subsequently reacting this product with the monomer component (4); (c) simultaneously reacting all four components; (d) reacting the polyisocyanate and the hydroxyl-containing material to form an isocyanate-terminated prepolymer and reacting this prepolymer either consecutively or simultaneously with the hydroxyalkyl ester and the monomer component (4); (B) adding a curing agent selected from the group consisting of aminoplast resins, phenolic resins, and polyisocyanates which are different from the reaction product of (A) which cure said ungelled reaction product through condensation reaction with the hydroxyl functionality in said ungelled reaction product.

Claim 11

A method of producing a solvent-soluble coating composition which comprises: (A) reacting: (1) from about 1 to 30 percent by weight of a saturated aliphatic or aromatic polyisocyanate; (2) from about 4 to 50 percent by weight of a hydroxyl-containing material selected from the group consisting of saturated aliphatic or aromatic polymeric diols having glass transition temperatures less than 50° C., saturated aliphatic or aromatic low molecular weight diols and mixtures thereof; (3) from about 2 to 20 percent by weight of a hydroxyalkyl ester of an ethylenically unsaturated carboxylic acid; (4) from about 25 to 90 percent by weight of at least one ethylenically unsaturated monomer different from (3); the equivalent ratio of isocyanate to hydroxyl groups in (1), (2) and (3) being between 1:1.1 and 1:9 so as to obtain an ungelled reaction product and introduce hydroxyl functionality into said reaction product; said reaction product being further characterized as being essentially free of unreacted NCO groups and ethylenic unsaturation; the reaction being conducted by any of the following steps: (a) reacting the hydroxyalkyl ester with the polyisocyanate and subsequently reacting this product either consecutively or simultaneously with a hydroxyl-containing material and the monomer component (4); (b) reacting the hydroxyalkyl ester, the hydroxyl-containing material and the polyisocyanate and subsequently reacting this product with the monomer component (4); (c) simultaneously reacting all four components; (d) reacting the polyisocyanate and the hydroxyl-containing material to form an isocyanate-terminated prepolymer and reacting this prepolymer either consecutively or simultaneously with the hydroxyalkyl ester and the monomer component (4); (B) adding a curing agent selected from the group consisting of aminoplast resins, phenolic resins, and polyisocyanates which are different from the reaction product of (A) which cure said ungelled reaction product through condensation reaction with the hydroxyl functionality in said ungelled reaction product.