Poly (vinyl alcohol) polymers with organo-linked pendant silanes having reactable alkoxy and/or hydroxy groups

Claim 2

An ungelled interaction product comprising: A. polyhydroxylated polymer having the hydroxylation present as a plurality of pendant constituents, wherein the hydroxyl pendant constituents are the predominant pendant constituents selected from the group consisting of poly(vinyl alcohol) and copolymers thereof and water-soluble carbohydrates and reactable organosilane moieties having up to 3 groups selected from alkoxy, aryloxy or hydroxy or mixtures thereof attached to the silane and having reactable organo groups selected from the group consisting of isocyanato alkyl, isocyanato aryl, isocyanato aralkyl, where the isocyanate is capped or uncapped ester-containing alkyl, aryl or aralkyl groups, and when the polyhydroxylated polymer is poly(vinyl alcohol) and copolymers thereof, the reactable organosilane group includes epoxy organofunctional silane, where the ungelled interaction product is formed by intimately contacting the polyhydroxylated polymer and the reactable organosilane in an aqueous solution where the polyhydroxylated polymer is present in an amount from about 1 up to about 40 weight percent and the intimate contacting is performed at a temperature ranging from ambient to elevated temperatures less than around 100°C to produce an aqueous mixture of the interaction product.

Claim 3

The product of claim 1, wherein the pH of aqueous solution with the interaction product is in the range of up to 4 and greater than or equal to 9.

Claim 4

The product of claim 1, wherein a protic acid catalyst is used in intimately contacting the polyhydroxylated polymer and reactable organosilane where the catalyst is present in an effective catalytic amount.

Claim 5

The product of claim 3, wherein acetic acid is the catalyst.

Claim 6

The product of claim 1, wherein a tertiary amine catalyst is used in an effective catalytic amount in intimately contacting the polyhydroxylated polymer and reactable organosilane.

Claim 7

The product of claim 1, wherein the polyhydroxylated polymer is poly(vinyl alcohol) polymer or copolymer and the organoreactable is isocyanato alkyl trialkoxy silane and the interaction product has in addition to pendant hydroxyl and acetate moieties at least one moiety having the formula: where R is an alkyl group and where R' is selected from alkyl and/or hydrogen groups.

Claim 8

Product of claim 1, wherein the polyhydroxylated polymer is poly(vinyl alcohol) or copolymer thereof and the reactable organosilane is glycidoxyalkyltrialkoxysilane and the interaction product has in addition to pendant hydroxyl and acetate moieties at least one moiety having the formula: where R is an alkyl group, where R' is an alkyl, hydrogen or mixture thereof between the three groups, and where q is an integer from 1 to 3,000.

Claim 9

Product of claim 1, wherein the polyhydroxylated polymer is poly(vinyl alcohol) or copolymer thereof and the reactable organosilane is ethoxyester alkyl alkoxysilane and the interaction product has in addition to pendant hydroxyl and acetate moieties at least one moiety having the formula: where R is an alkyl group, R' is an alkyl, hydrogen or mixture thereof between the three groups, and q is an integer from about 1 to about 3,000.

Claim 10

Product of claim 1, wherein the polyhydroxylated polymer is poly(vinyl alcohol) or copolymer and the remaining pendant hydroxyl groups of the interaction polymer is at least 50 percent on a number basis of the available pendant groups.

Claim 11

Product of claim 1, wherein the polyhydroxylated polymer is poly(vinyl alcohol) or copolymer thereof having a percent hydrolyzation of at least 50 percent and the interaction product has residual pendant acetate groups from the starting polyhydroxylated polymer.

Claim 12

Product of claim 1, wherein the polyhydroxylated polymer is poly(vinyl alcohol) or copolymer and the interaction product has on a number basis of pendant groups less than around 50 percent of pendant organo-linked silanes with reactable alkoxy and/or hydroxy groups.

Claim 13

Product of claim 11, wherein the percentage of pendant organo-linked silane groups present is up to 2 mole percent.

Claim 14

Product of claim 1, wherein the interaction product has the infrared spectra of Figure 1, curve A.

Claim 15

Use of the interaction product of claim 1 in an aqueous solution to treat hydroxyl containing substrates.

Claim 16

Hydroxyl-containing substrates coated with the dry residue of the interaction product in an aqueous solution of claim 1.

Claim 17

Product of claim 1, wherein the temperature range is ambient to 80 C.

Claim 18

Product of claim 1, wherein the water soluble carbohydrate is selected from the group consisting of starch and its etherified, esterified, oxidized and cationized derivatives.

Claim 19

An ungelled interaction product comprising: A. polyhydroxylated polymer having the hydroxylation present as a plurality of pendant constituents, wherein the hydroxyl pendant constituents are the predominant pendant constituents selected from the group consisting of poly(vinyl alcohol) having at least 80 percent hydrolysis products and copolymers thereof and water- soluble carbohydrates and reactable organosilane moieties having up to 3 groups selected from alkoxy, aryloxy or hydroxy or mixtures thereof bonded to the silane and having reactable organo groups selected from the group consisting of isocyanato alkyl silane, isocyanato aryl silane, isocyanato aralkyl silane, where the isocyanate is capped or uncapped and when the polyhydroxylated polymer is poly(vinyl alcohol) and copolymers thereof, the reactable organosilane group includes epoxy organofunctional silane, where the ungelled interaction product is formed by intimately contacting the polyhydroxylated polymer and the reactable organosilane in an aqueous solution where the polyhydroxylated polymer is present in an amount from about 5 up to about 40 weight percent and the intimate contacting is performed at a temperature ranging from ambient to elevated temperatures less than around 100° C and the aqueous solution with the polyhydroxylated polymer and reactable organosilane has a pH in the range of up to 4 and greater than 9 to produce an aqueous mixture of the interaction product having percentages of pendant groups on a number basis of pendant groups at least 50 percent of the pendant organo-linked silane with active alkoxy and/or hydroxy groups and at least 20 percent of unreacted acetate groups and at least around 50 percent of unreacted hydroxyl groups.

Claim 20

An ungelled interaction product comprising: A. polyhydroxylated polymer having the hydroxylation present as a plurality of pendant constituents, wherein the hydroxyl pendant constituents are the predominant pendant constituents selected from the group consisting of poly(vinyl alcohol) having at least 80 percent hydrolysis products and copolymers thereof and water- soluble carbohydrates and reactable organosilane moieties having up to 3 groups selected from alkoxy, aryloxy or hydroxy or mixtures thereof bonded to the silane and having reactable organo groups selected from the group consisting of isocyanato alkyl silane, isocyanato aryl silane, isocyanato aralkyl silane, where the isocyanate is capped or uncapped and when the polyhydroxylated polymer is poly(vinyl alcohol) and copolymers thereof, the reactable organosilane group includes epoxy organofunctional silane, where the ungelled interaction product is formed by intimately contacting the polyhydroxylated polymer and the reactable organosilane in an aqueous solution where the polyhydroxylated polymer is present in an amount from about 5 up to about 40 weight percent and the intimate contacting is performed at a temperature ranging from ambient to elevated temperatures less than around 100° C and the aqueous solution with the polyhydroxylated polymer and reactable organosilane has a pH in the range of up to 4 and greater than 9 to produce an aqueous mixture of the interaction product having percentages of pendant groups on a number basis of pendant groups at least 50 percent of the pendant organo-linked silane with active alkoxy and/or hydroxy groups and at least 20 percent of unreacted acetate groups and at least around 50 percent of unreacted hydroxyl groups.

Claim 21

Method of producing an interaction product of polyhydroxylated polymer and reactable organosilane, comprising A. intimately contacting polyhydroxylated polymer having the hydroxylation present as a plurality of pendant constituents, wherein the hydroxyl pendant constituents are the predominant pendant constituents selected from the group consisting of poly(vinyl alcohol) and copolymers thereof and water-soluble carbohydrates and reactable organosilane moieties having up to 3 groups selected from alkoxy, aryloxy or hydroxy or mixtures thereof and having reactable organo groups attached to the silane selected from the group consisting of isocyanato alkyl, isocyanato aryl, isocyanato aralkyl, where the isocyanate is capped or uncapped ester-containing alkyl, aryl or aralkyl groups, and when the polyhydroxylated polymer is poly(vinyl alcohol) and copolymers thereof, the reactable organosilane group includes epoxy organofunctional silane, where the ungelled interaction product is formed by intimately contacting the polyhydroxylated polymer and the reactable organosilane in an aqueous solution where the polyhydroxylated polymer is present in an amount from about 1 up to about 40 weight percent and the intimate contacting is performed at a temperature ranging from ambient to elevated temperatures less than around 100 C to produce an aqueous mixture of the interaction product.

Claim 22

Method of producing an interaction product of polyhydroxylated polymer and reactable organosilane, comprising A. intimately contacting polyhydroxylated polymer having the hydroxylation present as a plurality of pendant constituents, wherein the hydroxyl pendant constituents are the predominant pendant constituents selected from the group consisting of poly(vinyl alcohol) and copolymers thereof and water-soluble carbohydrates and reactable organosilane moieties having up to 3 groups selected from alkoxy, aryloxy or hydroxy or mixtures thereof and having reactable organo groups attached to the silane selected from the group consisting of isocyanato alkyl, isocyanato aryl, isocyanato aralkyl, where the isocyanate is capped or uncapped ester-containing alkyl, aryl or aralkyl groups, and when the polyhydroxylated polymer is poly(vinyl alcohol) and copolymers thereof, the reactable organosilane group includes epoxy organofunctional silane, where the ungelled interaction product is formed by intimately contacting the polyhydroxylated polymer and the reactable organosilane in an aqueous solution where the polyhydroxylated polymer is present in an amount from about 1 up to about 40 weight percent and the intimate contacting is performed at a temperature ranging from ambient to elevated temperatures less than around 100 C to produce an aqueous mixture of the interaction product.

Claim 23

Method of claim 19 which includes applying the aqueous mixture of the interaction product on a hydroxyl-containing substrate and reducing the moisture content of the mixture to form the coating.