# US 5,348,763 A · Method of forming a polymeric matrix containing filler material

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- Number: US 5,348,763 A
- Document ID: US5348763A
- Status: Granted
- Kind: A
- Application number: 08/080,309
- Filed: 1993-06-23
- Granted: 1994-09-20
- Earliest claimed: 1987-05-14
- Assignees: Glaverbel
- Inventors: Pierre Laroche
- Web page: https://patentgrep.com/patent/US5348763A

## CPC

- C08F 2/44: Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
- Y10T 428/2933: Coated or with bond, impregnation or core
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A method of forming a polymeric matrix containing inorganic filler material including the steps of fixing catalyst to the surface of filler material to provide catalyst-bearing filler material; bringing together the catalyst bearing filler material and polymerizable material; and causing polymerization of the polymerizable material, under conditions effective therefor, to form the polymeric matrix.

## Claims

### Claim 1

A method of forming a polymeric matrix containing inorganic filler material, comprising:
(a) adhering a layer of fixing agent to the surface of filler material;
(b) fixing catalyst to the surface of filler material to provide catalyst-bearing filler material by adsorbing the catalyst in the layer of fixing agent;
(c) bringing together the catalyst-bearing filler material and polymerizable material; and
(d) polymerizing the polymerizable material, under conditions effective therefor, to form the polymeric matrix.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the fixing agent is an organo-metallic compound.

### Claim 3 (depends on 2)

The method according to claim 2, wherein the organo-metallic compound is selected from the group consisting of silanes, chromium complexes, titanium derivatives, and polymers having a methoxysilyl group.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the filler material is contacted with a solution containing the catalyst and a fixing agent in order to fix the catalyst to the surface of the filler material in step (a), and the catalyst-bearing filler material is then dried.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the filler material is contacted with a suspension containing the catalyst and a fixing agent in order to fix the catalyst to the surface of the filler material in step (a).

### Claim 6 (depends on 1)

The method according to claim 1, wherein the polymerizable material is an unsaturated polyester.

### Claim 7 (depends on 6)

The method according to claim 6, wherein the catalyst is a peroxide.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the filler material comprises vitreous material.

### Claim 9 (depends on 8)

The method according to claim 8, wherein the filler material comprises vitreous beads.

### Claim 10 (depends on 9)

The method according to claim 9, wherein the vitreous beads comprise solid beads.

### Claim 11 (depends on 9)

The method according to claim 9, wherein the vitreous beads are selected so that they have a median diameter ranging between 20 and 650 micrometers inclusive.

### Claim 12 (depends on 9)

The method according to claim 9, wherein at least some of the vitreous beads are treated with an etching medium prior to coating.

### Claim 13 (depends on 12)

The method according to claim 12, wherein the etching medium used contains fluorine ions.

### Claim 14 (depends on 9)

The method according to claim 9, further comprising coating vitreous beads with a material which renders them both oleophobic and hydrophobic to provide coated beads, and incorporating the coated beads into the filler material together with catalyst-bearing vitreous beads.

### Claim 15 (depends on 14)

The method according to claim 14, wherein the catalyst-bearing vitreous beads are incorporated into the filler material in a proportion ranging between 70% and 90% by weight of the total filler.

### Claim 16 (depends on 8)

The method according to claim 8, wherein the filler material comprises glass fibers.

### Claim 17 (depends on 9)

The method according to claim 9, further comprising applying the polymerizable material to a pavement, and bringing together the polymerizable material and the catalyst-bearing vitreous beads by applying the catalyst-bearing vitreous beads onto the polymerizable material to cause in situ polymerization thereof and the formation of a pavement marking.

### Claim 18 (depends on 1)

The method according to claim 1, further comprising shaping the polymerizable material after step (c) before hardening thereof by polymerization in step (d).

### Claim 19 (depends on 16)

The method according to claim 16, wherein the filler material is glass fiber matting which is woven or unwoven and which is laid up, and wherein the a polymerizable material is applied to catalyst-bearing matting in step (c).

### Claim 20 (depends on 1)

A filled polymeric matrix formed by a method according to claim 1.