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Reactive acrylic polyolefin blends

An acrylic, core-shell acrylic technology applied in the field of polyolefins

Active Publication Date: 2022-02-01
ROHM & HAAS CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, some additives may migrate out of the polyolefin matrix

Method used

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  • Reactive acrylic polyolefin blends
  • Reactive acrylic polyolefin blends
  • Reactive acrylic polyolefin blends

Examples

Experimental program
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example

[0057] Synthesis and Analysis of Branched Polymers

[0058] Emulsion polymerization was carried out in an environment equipped with a mechanical stirrer, heating mantle, thermometer, temperature controller and N 2 Inlet is performed in a 5 L 4-necked round bottom flask. Charge 1530 parts of deionized water, 54.55 parts of sodium dodecylbenzenesulfonate surfactant (DS-4, 22% in water), 0.146 parts of FeSO 4 and 0.16 parts of acetic acid. in N2 The contents of the reactor were heated to 60°C under purge. In a separate container with 234 parts deionized water, 18.18 parts DS-4 surfactant (22% in water), 53 parts allyl methacrylate (ALMA), 696 parts methyl methacrylate (MMA) and 52 parts Parts of butyl 3-mercaptopropionate (BMP) to prepare monomer emulsion. Mechanical agitation should be used to achieve emulsification. The monomer emulsions totaled 1000 parts. The redox initiator system consisted of 2 separate solutions. The first is a 3% (by weight) solution of tert-butyl ...

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Abstract

Disclosed is a composition comprising a polyolefin and a core-shell acrylic polymer comprising a crosslinked core and a shell comprising a branched polymer. The branched polymer is a reaction product of reactants comprising one or more monoethylenically unsaturated ester monomers, a chain transfer agent in an amount of 0.1 to 15 weight percent, and a crosslinker in an amount of 0.1 to 15 weight percent of a crosslinker, wherein weight percent is based on total amount of reactants, provided the amount of crosslinker is within + / - 5 weight percent of the amount of chain transfer agent, and wherein the crosslinker comprises at least two carbon-carbon double bonds having different reactivity. A method for preparing the composition is also disclosed.

Description

technical field [0001] The field of the invention is polyolefin compositions, more specifically polyolefins blended with reactive acrylic thermoplastics. Background technique [0002] Polyolefin polymers are some of the most widely used plastics. Polyolefin is durable, heat and chemical resistant. Polyolefins are used as packaging materials, medical equipment, roofing materials, water pipes and more. [0003] However, a major challenge posed by polyolefins is their low surface energy, which makes it difficult to coat or laminate polyolefins on other plastics or substrates. Often it is desirable to coat, paint or print directly onto polyolefins, but the low surface energy makes such processes challenging. Various techniques exist for improving the low surface energy of polyolefins, such as incorporation of additives or surface treatments that increase the surface energy of polyolefins. Some examples of surface treatments include flame treatment, corona treatment, and plas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L51/00C08K5/14
CPCC08L23/0815C08L2207/53C08L51/003C08K5/14C08L23/16C08L33/08C08L51/06
Inventor 郭海兰M·威尔森
Owner ROHM & HAAS CO