Patent · US Expired

Copolymers based on C.sub.1 -C.sub.8 -alkyl acrylates and/or methacrylates and preparation and use thereof

US5240771A · kind A · utility

12Cited by

4References

7Claims

0Family size

Assignee

BASF SE

Inventors

Ralf Brueckmann · Putlitz, DE
Holger Schoepke · Ludwigshafen, DE
Thomas Wirth · Freinsheim, DE
Juergen Hartmann · Ludwigshafen, DE

Key dates

Filing date	Dec 28, 1992
Grant date	Aug 31, 1993
Priority date	—
Expiry date	Dec 28, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2969
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Copolymers suitable for use as temporary surface protection for two- or three-dimensional structures and as sizing agents are based on C.sub.1 -C.sub.8 -alkyl acrylates and/or methacrylates and are obtainable by free radical emulsion or solution polymerization of PA0 A) from 50 to 95% by weight of a C.sub.1 -C.sub.8 -alkyl acrylate or methacrylate, PA0 B) from 5 to 20% by weight of an unsaturated carboxylic acid or anhydride, PA0 C) from 0 to 20% by weight of further water-soluble comonomer, and PA0 D) from 0 to 10% by weight of other comonomer in the presence of PA0 E) from 2 to 60 parts by weight of a polyvinyl alcohol per 100 parts by weight of the monomer mixture of A) to D).

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