Patent · US Expired

Polyisobutylene hydrocarbon or polymer containing a double bond allylic to an end amino group

US5332791A · kind A · utility

27Cited by
2References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 16, 1992
Grant dateJul 26, 1994
Priority date
Expiry dateNov 16, 2012

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F10/10
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Hydrocarbons and polymers thereof, of the structure (I) EQU R--C(CH.sub.3).sub.2 --CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --CH.dbd.CH--CH.sub.2 --Cl (I) where R is a hydrocarbon radical, are prepared by reacting corresponding starting materials which contain chlorine bonded to tertiary carbon, of the structure EQU R--C(CH.sub.3).sub.2 --CH.sub.2 --C(CH.sub.3).sub.2 --Cl (II) with from 1 to 10 moles of butadiene in the presence of a Friedel-Crafts catalyst in a solvent which is inert to the catalyst, and the hydrocarbons or polymers thereof can be reacted in a further step of the process with a compound from the group comprising ammonia, primary or secondary amine or polyamine, amino alcohol, amino ether, hydrazine or hydrazine which is substituted up to three times.

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