Patent · US Expired

Antiagers and polymers containing them

US4654387A · kind A · utility

2Cited by

7References

6Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Hans-Josef Buysch · Krefeld, DE
Zsolt Szentivanyi · Leverkusen, DE
Josef Witte · Cologne, DE

Key dates

Filing date	Aug 7, 1985
Grant date	Mar 31, 1987
Priority date	—
Expiry date	Aug 7, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S524/925
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Compounds corresponding to the following general formula: ##STR1## wherein R.sup.0 represents H or, together with R.sup.1, represents --CO-- when X represents --CO-- or, together with R.sup.2, represents --CO-- when X represents --CH.sub.2 --CO, PA1 a residue of R, R.sup.1 and R.sup.2, H, C.sub.1 -C.sub.4 alkyl, aryl, COOR.sup.5 or, when R.sup.0 represents H and X represents --CO--, ##STR2## and the other residues R, R.sup.1 and R.sup.2 represent H; R.sup.3 represents H or CH.sub.3 ; PA1 R.sup.4 represents C.sub.7 -C.sub.20 aralkyl; PA1 R.sup.5 represents H, C.sub.1 -C.sub.4 alkyl or C.sub.6 -C.sub.12 aryl; PA1 X represents a residue --(CH.sub.2).sub.n CO--, --(CH.sub.2).sub.n SO.sub.2, --CH.sub.2 --, --CH.sub.2 O--CO-- ##STR3## m represents 1 or 2; and n represents 0 or 1; are suitable for use as incorporable antiagers for polymers, particularly nitrile rubber.

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