Patent · US Expired

Suspensions for producing filled cast resins

US5464898A · kind A · utility

5Cited by

5References

7Claims

0Family size

Assignee

Roehm GmbH Chemische Fabrik · DE

Inventors

Guenther Ittmann · Groß-Umstadt, DE
Manfred Krieg · Darmstadt, DE

Key dates

Filing date	Sep 19, 1994
Grant date	Nov 7, 1995
Priority date	—
Expiry date	Sep 19, 2014

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F292/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A cast resin suspensions comprising: PA1 (A) 40 to 80% by weight of an inorganic filler, PA1 (B) 60 to 20% by weight of a liquid polymerizable organic monomer, and PA1 (C) 0 to 5 parts by weight based on the sum of (A) and (B) of a polymerizable organosilicon component as coupling agent, wherein inorganic filler (A) is a mixture of at least two filler particle fractions having different median particle sizes, wherein the size ratio of the average particle sizes of the large and small filler particles ranges from 10:1 to 2:1 and wherein the weight ratio of the contents of large and small filler particles is from 4:1 to 1:4.

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