Filler particles coated with reactive liquid polymers in a matrix resin

Claim 2

Composition of matter comprising filler particles having a thin film of a reactive liquid polymer embedded in a polymeric matrix.

Claim 3

Composition of Claim 1 wherein said filler is selected from inorganic fillers; said reactive liquid polymer is selected from hydroxyl, vinyl, amine, carboxyl, mercaptan, isocyanate, and epoxy terminated reactive liquid polymers and mixtures thereof; and said polymeric matrix is selected from thermosetting or thermoplastic, and mixtures of these materials.

Claim 4

Composition of Claim 2 wherein amount of said reactive liquid polymer can vary from 2.5 to 20 parts per 100 parts of said filler; amount of said coated filler can vary from 20 to 200 parts per 100 parts of said matrix material; said reactive liquid polymer is selected from hydroxyl terminated reactive epichlorohydrin liquid polymers, vinyl terminated butadiene-acrylonitrile reactive liquid polymers, and mixtures of such polymers; said matrix resin is selected from polyester resins; and wherein amount of said reactive liquid polymer on said filler particles is calculated to provide a film of about 500 to 2000 angstroms in thickness.

Claim 5

Composition of Claim 3 including a coupling agent adhering to said filler particles and bonding said reactive liquid polymer to said filler particles, said coupling agent is selected from silanes, titanates and mixtures thereof and amount thereof being 0.1 to 5 parts per 10'0 parts of said filler.

Claim 6

Method of producing a composite comprising filler particles coated with a reactive liquid polymer embedded in a polymeric matrix, said method comprising mixing said reactive liquid polymer and said filler in order to provide a thin film of said reactive liquid polymer on said filler particles, mixing said coated Filler particles with a polymeric matrix, and forming said composite.

Claim 7

Method of producing a composite comprising filler particles coated with a reactive liquid polymer embedded in a polymeric matrix, said method comprising mixing said reactive liquid polymer and said filler in order to provide a thin film of said reactive liquid polymer on said filler particles, mixing said coated Filler particles with a polymeric matrix, and forming said composite.

Claim 8

Method of Claim 5 wherein said filler is selected from inorganic fillers; said reactive liquid polymer is selected from hydroxyl, vinyl, amine, :arboxyl, mercaptan, isocyanate, and epoxy terminated reactive liquid polymers and mixtures thereof; and said polymeric matrix is selected from thermosetting or thermoplastic, and mixtures of these materials.

Claim 9

Method of Claim 6 wherein amount of said reactive liquid polymer can vary from 2.5 to 20 parts per 100 parts of said filler; amount of said coated filler can vary from 20 to 200 parts per 100 parts of said matrix material; said reactive liquid polymer is selected from hydroxyl terminated reactive epichlorohydrin liquid polymers, vinyl terminated butadiene-acrylonitrile reactive liquid polymers, and mixtures of such polymers; and said matrix resin is selected from polyester resins.

Claim 10

Method of Claim 7 wherein amount of said reactive liquid polymer on said filler particles is calculated to provide a film of about 500 to 2000 angstroms in thickness.

Claim 11

Method of Claim 8 wherein an effective amount of a coupling agent is admixed to bond said filler particles to said reactive liquid polymer, said coupling agent is selected from silane and titanate coupling agents and is used in an amount of 0.1 to 5 parts per 100 parts of said filler.

Claim 12

Method of Claim 9 including the step of admixing an effective amount of an accelerator for cross-linking said reactive liquid polymer, said accelerator is mixed with said coated filler particles before mixing thereof with said polymeric matrix.