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CN-122029230-A - Composition and method for producing same, resin particles, modifier for engineering plastics, engineering plastic composition, and molded article

CN122029230ACN 122029230 ACN122029230 ACN 122029230ACN-122029230-A

Abstract

A composition comprising an olefin copolymer A and an olefin copolymer B, wherein the olefin copolymer A has a main chain comprising a monomer unit a derived from an olefin monomer having 2 to 8 carbon atoms and a monomer unit B having a glycidyl group, the ratio of the monomer unit a is 94% by mass or more and the ratio of the monomer unit B is less than 6% by mass based on the mass of the olefin copolymer A, and the olefin copolymer B has a monomer unit derived from an olefin monomer having 2 to 8 carbon atoms, the content of the olefin copolymer A is 20% by mass or more and 99% by mass or less based on the total mass of the olefin copolymer A and the olefin copolymer B.

Inventors

  • Bei Chuanxiang

Assignees

  • 住友化学株式会社

Dates

Publication Date
20260512
Application Date
20241002
Priority Date
20231013

Claims (16)

  1. 1. A composition comprising an olefin copolymer A and an olefin copolymer B, The olefin copolymer A has a main chain comprising monomer units a derived from an olefin monomer having 2 to 8 carbon atoms and monomer units b having a glycidyl group, the ratio of the monomer units a being 94% by mass or more and the ratio of the monomer units b being less than 6% by mass based on the mass of the olefin copolymer A, The olefin copolymer B has monomer units derived from an olefin monomer having 2 to 8 carbon atoms, The content of the olefin copolymer A is 20 to 99 mass% based on the total mass of the olefin copolymer A and the olefin copolymer B.
  2. 2. The composition according to claim 1, wherein the content of the olefin copolymer A is 30 to 99% by mass based on the total mass of the olefin copolymer A and the olefin copolymer B.
  3. 3. The composition of claim 1, wherein monomer unit a is a monomer unit derived from ethylene, a monomer unit derived from an alpha-olefin, or a combination thereof.
  4. 4. The composition of claim 1, wherein monomer unit a is a monomer unit derived from ethylene.
  5. 5. The composition of claim 1, wherein monomer unit b is a monomer unit derived from a glycidyl ester of an unsaturated carboxylic acid, a monomer unit derived from a glycidyl ether having an unsaturated group, or a combination thereof.
  6. 6. The composition of claim 1, wherein monomer unit b is a monomer unit derived from glycidyl (meth) acrylate.
  7. 7. The composition according to claim 1, wherein the olefin copolymer B comprises a monomer unit derived from ethylene and a monomer unit derived from an olefin monomer having 3 to 8 carbon atoms.
  8. 8. The composition according to claim 1, wherein the olefin copolymer B comprises a monomer unit derived from ethylene and a monomer unit derived from an olefin monomer having 5 to 8 carbon atoms.
  9. 9. The composition of claim 1, wherein the olefin copolymer B has a density of less than 0.910g/cm 3 .
  10. 10. A method for producing the composition according to any one of claims 1 to 9, wherein the method comprises a step of melt-kneading the olefin copolymer A and the olefin copolymer B.
  11. 11. A resin particle, wherein the resin particle comprises the composition of any one of claims 1 to 9.
  12. 12. A modifier for engineering plastics, wherein the modifier for engineering plastics comprises the composition according to any one of claims 1 to 9.
  13. 13. An engineering plastic composition, wherein the engineering plastic composition comprises an engineering plastic and the composition of any one of claims 1 to 9.
  14. 14. A molded body, wherein the molded body comprises the engineering plastic composition of claim 13.
  15. 15. The shaped body according to claim 14, wherein the shaped body is a component of an automotive part.
  16. 16. The molded body according to claim 14, wherein the molded body is a member of an electric/electronic component.

Description

Composition and method for producing same, resin particles, modifier for engineering plastics, engineering plastic composition, and molded article Technical Field The present invention relates to a composition, a method for producing the same, resin particles, a modifier for engineering plastics, an engineering plastics composition, and a molded article. Background Conventionally, a modifier for improving various properties of engineering plastics or modifying the engineering plastics by blending the modified materials into the engineering plastics has been known. For example, patent document 1 describes a resin composition comprising 5 to 95 parts by mass of (a) a polyphenylene ether resin, or a mixture of the polyphenylene ether resin and a polystyrene resin, 95 to 5 parts by mass of (B) a saturated polyester, and 1 to 100 parts by mass of (C) a graft-modified olefin resin prepared by impregnating (B) and (C) in an aqueous suspension containing 100 parts by mass of (a) an olefin resin, 0.1 to 30 parts by mass of (B) a compound represented by a predetermined formula, or a modifier of the compound and glycidyl methacrylate, or glycidyl methacrylate, 0.1 to 500 parts by mass of (C) a vinyl monomer, and 100 parts by mass of (d) a radical polymerization initiator relative to the total amount of (B) and (C), and polymerizing (a). Prior art literature Patent literature Patent document 1 Japanese patent laid-open No. 8-259798 Disclosure of Invention Problems to be solved by the invention One aspect of the present invention relates to a composition that when used as a modifier for engineering plastics is capable of yielding an engineering plastic composition having a low dielectric loss tangent and high toughness. Means for solving the problems In some aspects of the invention, the following [1] to [16] are provided. [1] A composition comprising an olefin copolymer A and an olefin copolymer B, The olefin copolymer A has a main chain comprising a monomer unit a derived from an olefin monomer having 2 to 8 carbon atoms and a monomer unit b having a glycidyl group, the ratio of the monomer unit a is 94% by mass or more based on the mass of the olefin copolymer A, the ratio of the monomer unit b is less than 6% by mass, The olefin copolymer B has monomer units derived from an olefin monomer having 2 to 8 carbon atoms, The content of the olefin copolymer A is 20 to 99 mass% based on the total mass of the olefin copolymer A and the olefin copolymer B. [2] The composition according to [1], wherein the content of the olefin copolymer A is 30 to 99% by mass based on the total mass of the olefin copolymer A and the olefin copolymer B. [3] The composition of [1] or [2], wherein the monomer unit a is a monomer unit derived from ethylene, a monomer unit derived from an α -olefin, or a combination thereof. [4] The composition according to any one of [1] to [3], wherein the monomer unit a is a monomer unit derived from ethylene. [5] The composition of any one of [1] to [4], wherein the monomer unit b is a monomer unit derived from a glycidyl ester of an unsaturated carboxylic acid, a monomer unit derived from a glycidyl ether having an unsaturated group, or a combination thereof. [6] The composition according to any one of [1] to [5], wherein the monomer unit b is a monomer unit derived from glycidyl (meth) acrylate. [7] The composition according to any one of [1] to [6], wherein the olefin copolymer B comprises a monomer unit derived from ethylene and a monomer unit derived from an olefin monomer having 3 to 8 carbon atoms. [8] The composition according to any one of [1] to [7], wherein the olefin copolymer B comprises a monomer unit derived from ethylene and a monomer unit derived from an olefin monomer having 5 to 8 carbon atoms. [9] The composition according to any one of [1] to [8], wherein the density of the olefin copolymer B is less than 0.910g/cm 3. [10] A method for producing the composition according to any one of [1] to [9], wherein the method comprises a step of melt-kneading the olefin copolymer A and the olefin copolymer B. [11] A resin particle, wherein the resin particle comprises the composition of any one of [1] to [9 ]. [12] A modifier for engineering plastics, wherein the modifier for engineering plastics comprises the composition of any one of [1] to [9 ]. [13] An engineering plastic composition, wherein the engineering plastic composition comprises an engineering plastic and the composition of any one of [1] to [9 ]. [14] A molded article, wherein the molded article comprises the engineering plastic composition of [13 ]. [15] The molded article according to [14], wherein the molded article is a member of an automobile part. [16] The molded article according to [14], wherein the molded article is a member of an electric/electronic component. Effects of the invention According to the present invention, it is possible to provide a composition which can give an engineering plastic composition having a low diel