Glass adhesion promoter

1. A fiberglass sizing composition comprising:

a copolymer having about 30 to about 99.99 percent by weight of at least one acid functional monomer unit;

about 0.01 to about 30 percent by weight of at least one comonomer unit selected from the group consisting of substituted amide monomers, silanol monomers, or amine oxide monomers, and mixtures thereof, and

about 0 to about 50 percent by weight of at least one ethylenically unsaturated monomer unit; and

a crosslinker;

wherein the fiberglass sizing composition has a pH of about 3.5 or less.

2. Fiberglass sizing composition comprising:

a copolymer having at least one acid group derived from at least one acid monomer having the general formula (I)—

 wherein R 1 to R 4 are independently hydrogen, methyl, carboxylic acid group or CH 2 COOH, alkyl or aryl sulfonic acid and wherein the acid groups can be neutralized; and

a hydrophobic comonomer having the general formula (II)—

 wherein R 5 is hydrogen, C 1 -C 6 alkyl or C 1 -C 6 hydroxyalkyl, and X is either mono or polycyclic aromatic group or a substituted aromatic group (with R 5 being hydrogen or methyl when X is aromatic) or X is of the general formula (III)—

 wherein R 6 is (independently of R 5 ) hydrogen, C 1 -C 24 alkyl, C 1 -C 24 alkoxy, C 1 -C 24 aminoalkyl, C 1 -C 24 alkyl sulfonate, —O alkyl, —OCO alkyl, —NCO alkyl, carbocyclic, heterocyclic, thio alkyl, or C 1 -C 24 hydroxyalkyl; Y is O or N; and t is either 0 or 1; and

a crosslinker;

wherein the fiberglass sizing composition has a pH of about 3.5 or less.

3. The fiberglass sizing composition of claim 2 wherein the pH is achieved by use of an organic acid or an inorganic acid.

4. The fiberglass sizing composition of claim 3 wherein the organic acid comprises malic acid, citric acid, tartaric acid or combinations thereof.

5. The fiberglass sizing composition of claim 3 wherein the inorganic acid comprises boric acid, its salts or combinations thereof.

6. The fiberglass sizing composition of claim 2 further comprising one or more corrosion inhibitors.

7. The fiberglass sizing composition of claim 2 further comprising one or more hydrophobic additives.

8. The fiberglass sizing composition of claim 2 further comprising one or more additives for reducing leaching of glass.

9. The fiberglass sizing composition of claim 2 further comprising one or more release additives.

10. The fiberglass sizing composition of claim 2 further comprising one or more additives selected from the group consisting of anti-oxidants/reducing agents, emulsifiers, dyes, pigments, oils, fillers, colorants, curing agents, anti-migration aids, biocides, plasticizers, waxes, anti-foaming agents, coupling agents, thermal stabilizers, flame retardants, enzymes, wetting agents, lubricants and combinations thereof.

11. The fiberglass sizing composition of claim 2 further comprising one or more additives selected from the group consisting of corrosion inhibitors, hydrophobic additives, additives for reducing leaching of glass, release agents, acids for lowering pH and combinations thereof.

12. A fiberglass sizing composition comprising:

a polymer having at least one acid group derived from at least one carboxylic acid monomer;

one or more crosslinkers; and

one or more additives, wherein the one or more additives is at least one or more release additives and at least one or more release additives further comprises silicone or fluorocarbon.

13. The fiberglass sizing composition of claim 12 wherein the polymer comprises acrylic acid.

14. The fiberglass sizing composition of claim 12 wherein the polymer further comprises a copolymer useful in glass adhesion having

about 30 to about 99.99 percent by weight of at least one acid functional monomer unit;

about 0.01 to about 30 percent by weight of at least one comonomer unit selected from the group consisting of substituted amide monomers, silanol monomers, or amine oxide monomers, and mixtures thereof; and

about 0 to about 50 percent by weight of at least one ethylenically unsaturated monomer unit.

15. The fiberglass sizing composition of claim 12 wherein the polymer is a copolymer comprising:

at least one acid group derived from at least one acid monomer having the general formula (I)—

 wherein R 1 to R 4 are independently hydrogen, methyl, carboxylic acid group or CH 2 COOH, alkyl or aryl sulfonic acid and wherein the acid groups can be neutralized; and

a hydrophobic comonomer having the general formula (II)—

 wherein R 5 is hydrogen, C 1 -C 6 alkyl or C 1 -C 6 hydroxyalkyl, and X is either mono or polycyclic aromatic group or a substituted aromatic group (with R 5 being hydrogen or methyl when X is aromatic) or X is of the general formula (III)—

 wherein R 6 is (independently of R 5 ) hydrogen, C 1 -C 24 alkyl, C 1 -C 24 alkoxy, C 1 -C 24 aminoalkyl, C 1 -C 24 alkyl sulfonate, —O alkyl, —OCO alkyl, —NCO alkyl, carbocyclic, heterocyclic, thio alkyl, or C 1 -C 24 hydroxyalkyl; Y is O or N; and t is either 0 or 1.

16. The fiberglass sizing composition of claim 12 wherein the polymer is a hydrophobic comonomer having the general formula (II)—

 wherein R 5 is hydrogen, C 1 -C 6 alkyl or C 1 -C 6 hydroxyalkyl, and X is either mono or polycyclic aromatic group or a substituted aromatic group (with R 5 being hydrogen or methyl when X is aromatic) or X is of the general formula (III)—

 wherein R 6 is (independently of R 5 ) hydrogen, C 1 -C 24 alkyl, C 1 -C 24 alkoxy, C 1 -C 24 aminoalkyl, C 1 -C 24 alkyl sulfonate, —O alkyl, —OCO alkyl, —NCO alkyl, carbocyclic, heterocyclic, thio alkyl, or C 1 -C 24 hydroxyalkyl; Y is O or N; and t is either 0 or 1.

17. The fiberglass sizing composition of claim 12 wherein the additives function in reducing static.

18. The fiberglass sizing composition of claim 12 wherein the release additives function in reducing buildup of thresin on equipment.