Crosslinking composition exhibiting excellent storage stability
A technology of composition and cross-linking, which is applied to the layout of pipelines, hoses, mechanical equipment, etc., can solve the problems of difficult control of cross-linking speed and storage stability, and achieve good storage stability, excellent processability, and normal The effect of excellent physical properties
Active Publication Date: 2016-05-25
OSAKA SODA CO LTD
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Problems solved by technology
[0004] In the cross-linking composition containing epichlorohydrin-based polymers using triazine-based cross-linking agents among the above-mentioned cross-linking agents, it is difficult to control the cross-linking speed and storage even when various inhibitors are used. stability
Method used
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[0064] Hereinafter, the present invention will be specifically described by way of examples, but the present invention is not limited to these descriptions.
[0065] Using a kneader or Banbury mixer heated to 120°C, knead the compounding ingredients A shown in Table 1 for 4 to 5 minutes, then take out the kneaded product, and use a kneader heated to 60°C The mixing roll was made into a sheet, which was used as the A kneading material. The B kneading compounding agent was added to the A kneaded material, and kneaded using a mixing roll heated to 60° C. to obtain a sheet-like crosslinking composition.
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As a result of conducting various studies, it was discovered that, by including magnesium carbonate in a crosslinking composition including an epichlorohydrin-based polymer using a triazine-based crosslinking agent as a crosslinking agent thereof, crosslinked products of said crosslinking composition exhibit excellent storage stability, while maintaining the normal-state physical properties expected thereof as an epichlorohydrin-based polymer material. Moreover, in cases when a polyhydric alcohol is included in the crosslinking composition, storage stability is further improved, and the normal-state properties of crosslinked products of the crosslinking composition are also further improved, irrespective of the crosslinking method employed. Therefore, the inclusion of the polyhydric alcohol is preferable.
Description
technical field [0001] The present invention relates to a cross-linking composition containing an epichlorohydrin-based polymer having excellent storage stability, a cross-linked product obtained by cross-linking the cross-linking composition, and a car soft bag using the cross-linked product. Tube (hose). Background technique [0002] In general, halogen-containing polymers such as epichlorohydrin-based polymers are widely used as materials excellent in various physical properties by being cross-linked; Heat resistance, oil resistance, ozone resistance, etc., are used as fuel hoses, air system hoses, and tube materials in automotive applications. [0003] As crosslinking agents for epichlorohydrin polymers, quinoxaline crosslinking agents, triazine crosslinking agents, thiourea crosslinking agents, thiadiazole crosslinking agents, and thiuram polysulfides are used. Class crosslinking agent, bisphenol crosslinking agent, polyamine crosslinking agent, morpholine polysulfide...
Claims
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IPC IPC(8): C08L71/03C08K3/26C08K5/3492C08K5/36
CPCC08K3/26C08K5/053C08G65/333C08G65/3348C08L71/03B60T17/04C08J3/241C08J3/247C08K5/0025C08K5/3492C08K5/43F16L11/04C08K2003/267
Inventor 今罔刚船山俊幸芦田佳典尾崎太郎
Owner OSAKA SODA CO LTD