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US 5,830,987 AGranted
Amino-acrylate polymers and method
AssigneeHehr International Inc.
InventorStuart B. Smith
Life of this patent
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Abstract
An amino-acrylate polymer is prepared by the reaction of an aliphatic hydroxyl polyacrylate monomer, like pentaerythritol triacrylate, with a polyamine like a hexyldiamine to provide a rigid fast gelling and curing polymer, which polymer may be modified with resin modifiers. The amino-acrylate polymer may be used in the preparation of composite structures with fibers and filler materials.
Claims24
A method of producing a resin-modified acrylate polymer, which method comprises:
- reacting in a liquid reaction mixture an aliphatic acrylate monomer having three or more ester acrylate groups and at least one reactive hydroxyl group, an alkyl-substituted aliphatic polyamine and up to 50 percent by weight of a thermosetting, modifying resin.
A method of producing a modified amino-acrylate polymer which comprises:
- reacting in a liquid reaction mixture a polyacrylate-hydroxy monomer selected from the group consisting of:
- pentaerythritol triacrylate;
- pentaerythritol tetracrylate;
- dipentaerythritol pentacrylate;
- and combinations thereof;
- a polyamine selected from the group consisting of:
- meta-xylylenediamine;
- trimethyl hexamethylene diamine;
- aminomethyl-trimethyl cyclohexylamine;
- and combinations thereof, and the reaction carried out in the presence of a modifying, thermosetting resin, the modifying resin selected from the resin group of melamine-formaldehyde, urea-formaldehyde, phenol-formaldehyde, phenol-furfural, epoxy resins and combinations thereof.
7 more elements
Dependencies are inferred from the claim text.