Patent · US Expired

Shaped articles

US5061556A · kind A · utility

7Cited by

2References

1Claims

0Family size

Assignee

BASF SE

Inventors

Bernhard Dotzauer · Frankenthal (Pfalz), DE
Wilhelm Friedrich Beckerle · Frankenthal (Pfalz), DE
Hans-Juergen Denu · Lampertheim, DE
Kurt Wendel
Manfred Schwartz · Bischofswerda, DE

Key dates

Filing date	Feb 22, 1990
Grant date	Oct 29, 1991
Priority date	—
Expiry date	Feb 22, 2010

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/52
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A shaped article is obtainable by impregnating or coating a preform composed in the main of mineral fibers, nonfibrous mineral fillers and starch with a composition which contains a binder comprising a copolymer composed of PA1 a) 60-95% by weight of methyl methacrylate (monomer I), PA1 b) 5-40% by weight of acrylic or methacrylic acid (monomer II) PA1 c) 0-35% by weight of one or more acrylic esters of a C.sub.1 -C.sub.8 -alkanol (monomer III), PA1 d) 0-5% by weight of a copolymerizable olefinically polyunsaturated monomer (monomer IV), and PA1 e) 0-5% by weight of another copolymerizable monomer (monomer V) in polymerized form, the weight percentages of monomers I, II, III and V having been selected within the stated limits in such a way that a polymer composed of these monomers only would have a glass transition temperature of from 60.degree. to 125.degree. C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.