Dow Global Technolgoies LLC

Pankaj Gupta

Yunwa Wilson Cheung

Eddy I Garcia-Meitin

Phillip Dene Hustad

Roger L Kuhlman

Kim Louis Walton

Edmund M Carnahan

Gary Robert Marchand

Jeffrey D Weinhold

Benjamin C Poon

Teresa Plumley Karjala

Brian W Walther

Thoi H Ho

William J Harris

Xue Chen

Patricia L Roberts

Selim Yalvac

Stephen F Hahn

Cynthia L Rickey

John D Weaver

Benjamin R Rozenblat

Kenneth N Reichek

Colin Li Pi Shan

Colin LiPiShan

Felipe B Martinez

Morgan Mark Hughes

Ashish Batra

Theresa J Hermel-Davidock

Laura Bauerle Weaver

Dwight D Latham

Michael T Malanga

John J Gathers

Liangkai Ma

Douglas P Waszeciak

Jeffery D Zawisza

Jie Feng

Lisa C Kohlenberg

Eddie I Garcia-Meitin

Mark W Brown

Eddy Garcia-Meitin

This invention relates to polymer compositions comprising at least one ethylene/&#x3b1;-olefin interpolymer and a branched and/or high melt strength polypropylene, methods of making the polymer compositions, and molded, overmolded, extruded into profiles or thermoformed products made from the polymer compositions. The polymer compositions may have reduced post-thermoformed sheet and post extruded (profile) gloss properties and/or improved scratch-resistant properties.

Thermoforming, scratch-resistant, low gloss compositions comprising interpolymers of ethylene/&#x3b1;-olefins

The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties.

Functionalized ethylene/alpha-olefin interpolymer compositions

A polyolefin compound including: A) at least one thermoplastic olefin copolymer including the reaction product of olefin 1 and olefin 2, wherein: olefin 1 is a Cbased olefin and olefin 2 is a Cto C&#x3b1;-olefin or olefin 1 is a Cbased olefin and olefin 2 is a Cto C&#x3b1;-olefin; B) at least one functional polymer, the functional polymer content in the polyolefin compound being between 1 and 75 weight percent of the combined components A and B; wherein the thermoplastic olefin copolymer and the functional polymer form a co-continuous phase; wherein: a) an 12 melt index of the polyolefin compound is from about 1 to about 15 as measured using ASTM D 1238; b) a Shore A hardness of the polyolefin compound is from about 55 to about 100 as measured using ASTM D2240; c) a flexural modulus of the polyolefin compound is from about 0.8 to about 30 kpsi as measured using ASTM D790.

Two/three component compatible polyolefin compounds

Embodiments of the invention provide a class of mesophase separated butene/&#x3b1;-olefin block interpolymers with controlled block sequences. The butene/&#x3b1;-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M/M, greater than about 1.4. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block butene/&#x3b1;-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation ('TREF'), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the butene/&#x3b1;-olefin interpolymer has a molecular weight distribution, M/M, greater than about 1.4.

Butene/&#x3b1;-olefin block interpolymers

Functionalized ethylene/&#x3b1;-olefin interpolymer compositions

Embodiments of the invention provide a class of butene/&#x3b1;-olefin block interpolymers. The butene/&#x3b1;-olefin inter-polymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M/M, greater than about 1.3. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block butene/&#x3b1;-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation ('TREF'), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the butene/&#x3b1;-olefin interpolymer has a molecular weight distribution, M/M, greater than about 1.4.

Embodiments of the invention provide a class of mesophase separated ethylene/&#x3b1;-olefin block interpolymers with controlled block sequences. The ethylene/&#x3b1;-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M/M, greater than about 1.4. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block ethylene/&#x3b1;-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation ('TREF'), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the ethylene/&#x3b1;-olefin interpolymer has a molecular weight distribution, M/M, greater than about 1.4.

Ethylene/&#x3b1;-olefin block interpolymers

Embodiments of the invention provide a class of mesophase separated propylene/&#x3b1;-olefin block interpolymers with controlled block sequences. The propylene/&#x3b1;-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M/M, greater than about 1.4. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block propylene/&#x3b1;-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation ('TREF'), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the propylene/&#x3b1;-olefin interpolymer has a molecular weight distribution, M/M, greater than about 1.4.

Propylene/alpha-olefin block interpolymers

Embodiments of the invention provide a class of ethylene/&#x3b1;-olefin block interpolymers. The ethylene/&#x3b1;-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M/M, greater than about 1.3. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block ethylene/&#x3b1;-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation ('TREF'), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the ethylene/&#x3b1;-olefin interpolymer has a molecular weight distribution, M/M, greater than about 1.4.

Ethylene/&#x3b1;-olefin block copolymers

Rheology modification of an ethylene/&#x3b1;-olefin interpolymer is achieved by blending the interpolymer with at least one branched polyolefin. The polyolefins can be homopolymers or interpolymers and have a branching index of less than 1. The ethylene/&#x3b1;-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block interpolymer has a number of unique characteristics disclosed here. Rheology-modified ethylene/&#x3b1;-olefin interpolymer, i.e., the resulting polymer blends, can be extruded or molded into many useful articles, such as films, sheets, profiles, gaskets, foams, etc.

Rheology modification of interpolymers of ethylene/&#x3b1;-olefins and articles made therefrom

Polymer blends comprise at least an ethylene/&#x3b1;-olefin interpolymers and at least one polyolefin. The polyolefins can be homopolymers or interpolymers and have a melt strength of at least about 6 cN. The ethylene/&#x3b1;-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block interpolymer has a number of unique characteristics disclosed here. The polymer blends can be profiled extruded to make profiles, gaskets, and other products.

Interpolymers of ethylene/&#x3b1;-olefins blends and profiles and gaskets made therefrom

Growing community of inventors

Midland, MI, United States of America

Pankaj Gupta