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Rubber composition

A rubber composition and rubber technology, which can be used in other household appliances, transportation and packaging, special tires, etc., can solve the problem of hard film formation, and achieve the effect of improving wet grip performance

Active Publication Date: 2019-12-13
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This wax tends to form a hard film on rubber surfaces

Method used

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  • Rubber composition
  • Rubber composition
  • Rubber composition

Examples

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Embodiment Construction

[0019]

[0020] A rubber composition according to one embodiment of the present invention includes: a rubber component, branched alkanes having 40 to 70 carbon atoms, straight chain alkanes having 45 or more carbon atoms, and hydrocarbons having a weight average molecular weight of 300 to 15,000 The resin contains 0.3-3 parts by mass of branched alkanes, 1.2 parts by mass or less of straight-chain alkanes, and 0.1-100 parts by mass of hydrocarbon resin relative to 100 parts by mass of the rubber component. Hereinafter, each component is demonstrated.

[0021] (rubber component)

[0022] The rubber component is not particularly limited. Preferably, the rubber composition contains, for example, a diene rubber. The diene rubber is not particularly limited. Examples of diene-based rubbers include: natural rubber (NR), isoprene rubber (IR), butadiene rubber (BR), styrene-butadiene rubber (SBR), styrene-isoprene rubber (SIR), styrene-isoprene-butadiene rubber (SIBR), ethylene-...

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PUM

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Abstract

A rubber composition which contains a rubber component, while containing 0.3-3 parts by mass of a branched alkane having 40-70 carbon atoms, 1.2 parts by mass or less of a linear alkane having 45 or more carbon atoms, and 0.1-100 parts by mass of a hydrocarbon resin having a weight average molecular weight of 300-15,000, respectively relative to 100 parts by mass of the rubber component.

Description

technical field [0001] The present invention relates to a rubber composition. Background technique [0002] The rubber composition can be obtained by mixing an adhesive resin and a crosslinkable resin. In this case, the rubber composition is released from a Banbury mixer, an extruder, especially a mold (hereinafter, these are referred to as a mold and the like) at the time of its manufacture. Sex tends to deteriorate. Therefore, various commercially available mold release agents (for example, WB16 from Struktol GmbH), paraffin, oleic acid amide, calcium stearate, fatty acid metal salts, stearic acid etc. (Patent Document 1). [0003] [Prior art literature] [0004] [Patent Document] [0005] Patent Document 1: JP 2013-082884 A Contents of the invention [0006] [Problem to be Solved by the Invention] [0007] The rubber composition described in Patent Document 1 contains wax (paraffin wax) mainly containing linear components as a compounding agent for ozone crack re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00B60C1/00C08K5/01C08L101/00
CPCB60C1/00C08K5/01B60C1/0016B60C1/0025B60C1/0008C08K2201/014Y02T10/86C08L9/06C08L9/00C08L91/00C08L25/16C08L91/08C08L45/00C08K3/04C08K3/36C08K5/548C08K5/18C08K3/22C08K3/06C08K5/31C08K5/47C08L47/00C08L93/00C08L45/02B29D30/0662B29D30/08B29D30/52B29K2009/06B29K2507/04B29K2509/02C08L2205/025C08L2205/035
Inventor 宫崎达也
Owner SUMITOMO RUBBER IND LTD