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Powder adhesives for bonding elastomers

A technology of adhesives and elastomers, applied in adhesive types, other rubber adhesives, conjugated diene adhesives, etc.

Active Publication Date: 2010-03-31
LORD CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Unfortunately, however, to formulate a powder adhesive composition, a host of other problems must be overcome that are not encountered with solvent-based or water-based adhesives

Method used

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  • Powder adhesives for bonding elastomers
  • Powder adhesives for bonding elastomers
  • Powder adhesives for bonding elastomers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A 90 / 10 P(DCD / α-BRAN) binder system was sprayed at a film thickness of 25.4 μm on top of the CHEMLOK 205 primer. The rubber was bonded at 171 °C and 13.8 MPa for 14 minutes.

Embodiment 2

[0044] Bromide P(DCD) (bromine content is about 7% by weight) was applied on the CHEMLOK 205 primer layer with a film thickness of 50.8 μm, and bonded in the same manner as in Example 1.

Embodiment 4

[0048] A 90 / 10 P(DCD / α-BRAN) adhesive system with a film thickness of 25.4 μm was applied on MetalJacket 1100 / 2110 metallizer, followed by bonding of natural rubber at 160° C. and 13.8 MPa for 14 minutes.

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Abstract

A powder adhesive composition for bonding an elastomer to metals or other rigid substrates comprising a powdered film forming polymer having a liquefaction temperature above room temperature and is capable of forming rubber tearing bonds between an elastomer and a substrate. The adhesive composition is shelf stable and free flowing at room temperature to allow for ease of storage and electrostatic spray application, yet melts or flows at elevated temperatures to form a film on a coated substrate prior to elastomer bonding.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 60 / 939,911, entitled "POWDER ADHESIVES FOR RUBBER TOMETAL BONDING," filed May 24, 2007 rights, the contents of which are incorporated herein by reference. technical field [0003] This invention relates to adhesive compositions for bonding elastomers to various substrates. More specifically, the present invention relates to powdered adhesives for bonding vulcanizable elastomers to metal substrates, methods of bonding vulcanizable elastomers using such adhesives, and Obtained adhesive products. Background technique [0004] Bonding of vulcanizates to substrates, especially metals, is typically by a primer-overcoat two-coat adhesive system, or a one-coat system without a primer. In order to provide acceptable adhesion, the adhesive composition must exhibit excellent adhesion (evidence of excellent adhesion as evidenced by rubber remaining on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J5/06C09J109/00C09J121/00
CPCB29C65/4835B29C66/742C09D123/286B29C65/4815B29C66/71B29C65/486C09J109/00C08L61/06C09J123/28B29C66/73751C09J115/02Y10T428/31692Y10T428/31855B29K2021/00B29K2023/22B29K2023/16B29K2019/00B29K2011/00B29K2009/06B29K2007/00
Inventor K-Y·魏柯克·J·阿贝詹姆斯·哈拉戴
Owner LORD CORP
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