Shell Oil Comapny

Charles C Hwo

Dale J Wilpers

James D McCullough, Jr

Patrick M Hughes

Robert W Lee

Manuel Soler Rodriguez

Jerry W Secrist

Paul Karol Casey

Simone Mostert

William J Graff

John A Martone

Larry K Watkins

Pui Kwan Wong

Carlton Edwin Ash

Charles Lee Edwards

Michael John Modic

Sol Davison

Ananda M Chatterjee

William H Korcz

Masaki Kohyama

Pierre Nazareth Tutunjian

George B Klingensmith

Simon Mostert

Chin-Yuan G Ma

Mark L Kasakevich

Mark Leonid Kasakevich

A grafted polyolefin polymers having high polarity produced by grafting bi-functional N-substituted diacids to maleated or other functional group grafted polyolefin. The new polymers exhibit improved water miscibility, compatability and good adhesion to polar materials such as nylon, polyester, glass, and metal substrates.

Polyfunctional polyolefins

The present invention provides water-borne adhesives and adhesive emulsions comprising: (1) 25 to 55 weight percent of a grafted polyolefin comprising the reaction product of (i) a polyolefin, (ii) an ethylenically unsaturated monomer having functionality capable of reacting with an amino group and (iii) an amino carboxylic acid; (2) a minor amount up to 10 weight percent of a surfactant; and (3) 55 to 80 weight percent water.

Water based adhesive emulsions based on multi-acid functionalized polyolefins

The use of a minor amount of poly-1-butene for improving the processability or extrusion efficiency of a metallocene-made thermoplastics, particularly metallocene-made low density polyethylene, by adding about 0.1-15 wt % of poly-1-butene to the metallocene-made thermoplastics which are melt incompatible with the poly-l-butene prior to processing.

Method for improving processability of thermoplastics

The present invention relates to the addition of a poly-1-butene to a mixture of a styrene-diene block copolymer, a polypropylene homo(co)polymer, oil, and optionally a metallocene-made polyethylene and/or filler such as talc, to make a mixture suitable for making automotive parts, household goods, sporting goods, etc.

Block copolymer composition containing polypropylene and polybutene

The addition of a synergistic pelletizing aid package of HDPE and metallic fatty acid surfactant to the water bath to minimize the agglomeration of polyolefin pellets in an underwater pelletizing process.

Pelletizing aid for polymers

A process for making polymer pellets comprising unreacted free radical generator which can be degraded upon thermal treatment to form an ultra low melt viscosity polyolefin, which process comprises the steps of adding polyolefin and free radical generator required for the degradation in the extruder to the first half section of an extruder and injecting, optionally through a side-arm extruder, another portion of free radical generator near the exit of the extruder to provide a sufficient amount of unreacted free radical generator in the pellets produced, and followed by pelletizing the resulting molten mixture to form uniform non-sticky pellets.

Process for improving processability of ultra low melt viscosity polymer

It is disclosed a plastic foam product having and exhibiting excellent temperature resistance, tear resistance, and flexibility properties produced from a blend comprising poly-1-butene, styrenic block copolymer, and/or an olefinic rubber, and optionally a non-elastomeric polyolefin. These foams are particularly useful in very high temperature applications such as pipe wrap in refrigerators and HVAC.

Plastic foams made from polybutylene blends

It is herein disclosed a novel elastomeric polybutylene-1 having and exhibiting syndiotacticity of greater than ten percent, and possessing other desirable properties. The novel elastomeric polybutylene-1 can be blended with compatible materials such as polypropylene and its copolymers, ethylene-propylene block copolymers, butyl rubbers and polyisobutylene. Such compositions are particularly suitable in films, hot melt adhesives, textile and fiber applications. The novel elastomeric polybutylene-1 can also be blended with incompatible materials such as ethylenically unsaturated esters (EVA, EMA, EMAA, EEA), polyester, nylon, polystyrene, styrene block copolymers (SEBS, SIS, SBS) and polyethylenes into a composition having soft and improved elastic properties. Such blends are particularly useful in easy-open packaging and foam applications, and in PVC replacement. When oriented, films made of such blends are used as soft and elastic shrink films. The novel elastomeric polybutylene-1 can also be blended with both incompatible and compatible materials.

Elastomeric polybutylene polymer

It is herein provided a polymer composition having and exhibiting improved bonding to incompatible materials comprising functionalized high melt flow polyolefins and unfunctionalized polyolefins. More specifically, these compositions have and exhibit improved adhesion to polar materials, and improved dyeability and printability.

Functionalized modified high melt flow polyolefins

It is disclosed a polyolefin blend having an exhibiting improved processability and mechanical properties comprising of a major amount of a high molecular weight or low melt flow polyolefin, and minor amounts of a high melt flow polyolefin and an ordinary melt flow polyolefin copolymer. The improvement in processability, optical, and mechanical properties is synergistic, and is particularly evident by the improvement in output rate and dart drop impact strength.

Olefinic polymer blends for improving polyolefins

A method of producing a polyolefin blend, such as a polypropylene-polybutylene blend comprising preferentially cracking the polybutylene component with the aid of a cracking agent at a temperature sufficient to induce preferential cracking. The blend produced by the method of this invention has improved optical properties, shrinkage, and processability.

Cocracked polymer blend and products produced therefrom

It is herein disclosed a metallized film having an exhibiting a superior surface gloss, said film comprising a blend of (i) no more than about 10% by weight of low molecular weight, isotactic poly-1-butene with a melt flow in the range, of greater than 20 to about 1500 g/10 min., and (ii) at least about 90% by weight of a propylene polymer.

Metallized films

A packaging film comprising a core layer of polypropylene and a surface layer comprising a propylene ethylene random copolymer wherein at least one of said core or said surface layers contains a minor amount of a high melt index butylene homopolymer.

Polypropylene-polybutylene heat sealable laminated packaging film with

Polymer blends of improved properties for use in packaging applications comprise blends of a crystalline poly(1-butene) and a selectively hydrogenated block copolymer of vinyl aromatic hydrocarbon and conjugated alkadiene of the SEBS type.

Polymer blends

A composition comprising a blend of from about 10% by weight to about 90% by weight of a propylene polymer from about 10% by weight to about 90% by weight of low melt index polybutylene having a melt index of between about 0.5 and 10 and about 0.5% by weight to about 10% by weight of a high melt index polybutylene having a melt index of from about 10 to about 1000 including articles prepared therefrom.

Growing community of inventors

Sugar Land, TX, United States of America

Charles C Hwo