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HALOGENATED OLEFIN MULTI-BLOCK INTERPOLYMERS AND METHODS FOR MAKING THE SAME

IP.com Disclosure Number: IPCOM000197700D
Publication Date: 2010-Jul-19

Publishing Venue

The IP.com Prior Art Database

Abstract

This invention relates to halogenated (for example, chlorinated) and chlorosulfonated olefin multi-block interpolymers, to rticles prepared from the same, and to methods of forming the same.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 3% of the total text.

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HALOGENATED OLEFIN MULTI-BLOCK INTERPOLYMERS AND METHODS FOR MAKING THE SAME

FIELD OF THE INVENTION
This invention relates to halogenated (for example, chlorinated) and

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chlorosulfonated olefin multi-block interpolymers, to articles prepared from the same, and to methods of forming the same.

BACKGROUND OF THE INVENTION
Compositions of chlorinated and chlorosulfonated polyolefins are known and

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have been commercially produced for many years. The properties of such materials, which have good chemical and abrasion resistance, and equivalent or better impact resistance, have made them useful in a number of areas, such as single ply roofing membranes, wire and cable jacketing, under-the-hood automotive molded parts, such as, boots and wiring, and for other thermoplastic or thermoset uses. In many

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situations, the addition of chlorine or chlorine and sulfur has so changed the properties of the base polyolefin that new compositions have resulted, which provide satisfaction in service and enhanced utility over other thermoplastic and thermoset materials. However, the final properties of the chlorinated or chlorosulfonated polyolefin polymer are determined to a large degree by the properties of the base polyolefin

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resin.

    A new family of olefin block copolymers has been discovered, which provide unexpected and unpredicted properties when chlorinated or chlorosulfonated to form new compositions of such chlorinated or chlorosulfonated olefin block copolymers. A number of recent applications have been filed which disclose the new olefin block

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copolymers. The olefin multi-block interpolymers are described in International Application No. PCT/US05/008917, U.S. Publication No. 2006/0199914, U.S. Provisional Application No. 60/876287, and U.S. Provisional Applications No. 60/876287, each fully incorporated herein by reference.

Chlorinated linear ultra low density polyethylene, produced by chlorinating a

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linear ultra low density polyethylene having a density in the range of from 0.860 to
0.910 g/cc, in the presence of a catalyst, comprising a solid catalyst component

-1-

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containing at least magnesium, titanium and an organic aluminum compound, is taught in U.S. Pat. No. 4,704,439. This product has an undesirable high level of crystallinity, limiting the field of application or use, and uses a conventional catalyst system. U.S. Pat. No. 4,433,105 teaches a chlorinated rubber, derived from the chlorination of a copolymer rubber of ethylene/1-butene having a mole ratio of

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ethylene/1-butene of about 85/15 through about 95/5.

    Subsequent development of a family of linear olefin polymers via metallocene-based chemistry led to chlorinated or chlorosulfonated substantially linear olefin polymers with improved properties. These new materials featured chlorinated or chlorosulfonated linear olefins that were based on a linear olefin

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polymer characterized as having: a) melt flow ratio I10/I2, ≥ 5.63, b) molecular...