1
Paul Boerzel, Klaus Bronstert, Friedrich Hovemann: Polyisobutenes. BASF Aktiengesellschaft, Keil & Witherspoon, May 1, 1979: US04152499 (206 worldwide citation)

Isobutene polymers having a mean degree of polymerization P of from 10 to 100 and a proportion E of double bonds, capable of reaction with maleic anhydride, of from 60 to 90%, where E=100% corresponds to the calculated theoretical value for the case where each molecule of the isobutene polymer conta ...


2
Hans P Rath: Preparation of highly reactive polyisobutenes. BASF Aktiengesellschaft, Keil & Weinkauf, February 15, 1994: US05286823 (77 worldwide citation)

A process for preparing highly reactive polyisobutenes with a content of terminal vinylidene groups of more than 80 mol % and an average molecular weight of 500-5000 Dalton by the cationic polymerization of isobutene or isobutene-containing hydrocarbon feeds in liquid phase with the aid of boron tri ...


3
Hans P Rath: Preparation of highly reactive polyisobutenes. BASF Aktiengesellschaft, Keil & Weinkauf, April 18, 1995: US05408018 (64 worldwide citation)

A process for preparing highly reactive polyisobutenes with a content of terminal vinylidene groups of more than 80 mol % and an average molecular weight of 500-5000 Dalton by the cationic polymerization of isobutene or isobutene-containing hydrocarbon feeds in liquid phase with the aid of boron tri ...


4
Rath Hans Peter Dr: Process for the manufacture of highly reactive polyisobutenes.. BASF, December 14, 1994: EP0628575-A1 (27 worldwide citation)

A process for the preparation of highly reactive polyisobutenes having a content of terminal vinylidene groups of greater than 80 mol % and having a mean molecular weight of 500 - 5000 daltons by cationic polymerisation of isobutene or isobutene-containing hydrocarbon steams in the liquid phase with ...


5
Kerr James Maxwell Bp Chemical, Mcmahon John Bp Chemicals Ltd, Scotland James Mann Bp Chemica: Production of polybutenes.. Bp Chem Int, September 13, 1995: EP0671419-A1 (25 worldwide citation)

This invention relates to a method of producing polyisobutenes from a feedstock comprising a mixture of C4 hydrocarbons and containing isobutene and at least 5% by weight of 1-butene using a cationic polymerisation catalyst, characterised in that prior to polymerisation, the feedstock is subjected t ...


6
Mohamed Kanji, Ewelina Pitusiak: Fiber-containing cosmetic composition. L&apos Oreal, Finnegan Henderson Farabow Garrett & Dunner L, April 27, 2004: US06726917 (21 worldwide citation)

The invention provides a cosmetic composition, particularly useful as a mascara, containing fibers, pigments, and at least two film formers: at least one tacky film former soluble or dispersible in water and at least one tacky film former soluble in oil chosen from hydrogenated polyisobutenes, adipi ...


7
Process for the preparation of substituted succinic acid compounds. Lubrizol, February 19, 1964: GB949981-A (18 worldwide citation)

Hydrocarbon-substituted succinic anhydrides are obtained by preparing a mixture of an olefin polymer and maleic anhydride, and contacting said mixture at a temperature above about 140 DEG C., preferably in the range of 160 DEG C. to 250 DEG C., with at least about one mole of chlorine for each mole ...


8
Donatien Wyffels: Plasticizer composition. BP Chemicals, Brooks Haidt Haffner & Delahunty, November 18, 1997: US05688850 (16 worldwide citation)

This invention is a formulation comprising a blend of a polybutene and an aliphatic lactate ester said blend containing from 50-99% w/w of the polybutene. The polybutene may be a poly-n-butenes, polyisobutenes, polymers containing a mixture of n-butene and isobutene monomer units, and mixtures there ...


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Arno Lange, Hans Peter Rath: Method for producing polyisobutenes. BASF Aktiengesellschaft, Novak Druce & Quigg, July 17, 2007: US07244870 (13 worldwide citation)

Polyisobutenes in which at least 60 mol % of the polymer chains have at least one olefinically unsaturated terminal group are prepared by cationic polymerization of isobutene or isobutene-containing monomer mixtures in the condensed phase by a process in which the polymerization is carried out in th ...