The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 1994
Filed:
Sep. 02, 1993
Applicant:
Inventors:
Herbert Wirtz, Eppstein/Taunus, DE;
Sigmar-Peter von Halasz, Liederbach, DE;
Michael Feustel, Kelkheim, DE;
Juliane Balzer, Frankfurt am Main, DE;
Assignee:
Hoechst, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C10N / ; C10L / ;
U.S. Cl.
CPC ...
525217 ; 525200 ; 525204 ; 525216 ; 525219 ; 525223 ; 525226 ; 525228 ; 526245 ; 526247 ; 526260 ; 526263 ; 526309 ; 526310 ; 526313 ; 526320 ; 252 / ; 252 54 ; 252 / ; 252 57 ;
Abstract
New copolymers, mixtures thereof with poly(meth)acrylate esters and the use thereof for improving the cold fluidity of crude oils. Copolymers comprising as comonomers therein from 50 to 99.9% by weight of a C.sub.14 -C.sub.22 -alkyl(meth)acrylate and 50 to 0.1% by weight of a comonomer derived from a compound comprising a single polymerizable C.dbd.C group and these copolymers or their mixture with C.sub.14 -C.sub.22 -alkyl poly(meth)acrylates having enhanced pour point depressant properties.