2014年5月29日星期四

resin modifier



In the surface of the molded article to corona discharge treatment or a plasma treatment method, there are treated as time goes by, will reduce the problem of wettability. Moreover, the polyolefin resin composition to the surface active agent is added to the molded article made of the method, there is added to make the modification effect if the added amount of full, the original molded polyolefin resin base material originally has a mechanical strength (tensile elastic modulus, impact resistance, etc. hereinafter.) be damaged or a surfactant molded article from leaking problems, eager to improve.
The present invention seeks to provide mechanical strength without prejudice to the polyolefin resin substrate under the conditions of imparting excellent water wettability polyolefin resin modifier.
In order to solve the above problems, the present inventors have intensively studied to complete the present invention. That is, the present invention comprising a polyolefin (A) and unsaturated dicarboxylic acids (anhydrides) (B) the structural unit having 50 ~ 250mgK0H / g of acid value of the copolymer (X) is a polyolefin resin improving agent (K); containing the modifier, and (K) and the polyolefin resin (E) of a polyolefin resin composition.
 The present invention is a polyolefin  resin modifier , the modifier comprising the polyolefin resin composition molded article formed by molding has the following effects.

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2014年5月28日星期三

Adhesion accelerator



The present invention relates to an adhesion accelerator for enhancing the adhesive strength between rubber and metal. In particular, this invention relates to an adhesion accelerator for enhancing the adhesive strength of rubber to steel cords. In addition, the present invention also relates to a rubber composition containing the above adhesion accelerator.

Heretofore, in order to improve the adhesive strength of natural or synthetic rubber to steel cords used as a reinforcement for a radial tire or a belt of a belt conveyer, there have been used, as an adhesion accelerator, cobalt-containing metal organic compounds such as cobalt stearate, cobalt naphthenate, cobalt-boron complex, etc. Although these cobalt-containing metal organic compounds have a high vulcanization accelerating ability, the presence of cobalt in rubber lowers the storage stability. Besides cobalt-containing organic compounds, some other metal organic compounds have also been investigated. In fact, many patents disclose the use of some specific metal organic compounds as adhesive strength improving agents. For instance, some organic acid cobalt salts are disclosed in the following patents. U.S. Pat. No. 1,919,718 discloses cobalt acetate and cobalt salts of low molecular fatty acids, particularly a cobalt stearate. U.S. Pat. No. 2,912,355 discloses cobalt oleate and cobalt citrate. U.K. patent 1,169,366 discloses cobalt linoleate and cobalt resinate. U.S. Pat. No. 4,076,668 discloses cobalt salts of naphthenic acid, octylic acid, tall oil acid, etc. Japanese Patent Application Laid-Open No. 61-60743 discloses cobalt propionate, calcium propionate, magnesium propionate, nickel propionate, zinc propionate, etc. Japanese Patent Application Laid-Open No. 6-65142 discloses a metallic soap having a structure of naphthalene or biphenyl. Japanese Patent Application Laid-Open No. 60-15444 and Japanese Patent Application Laid-open No. 60-158230 disclose cobalt borate and the like. Japanese Patent Application Laid-Open No. 60-199643 discloses a metal salt of thiosulfuric acid ester. Japanese Patent Application Laid-Open No. 59-207949 and Japanese Patent Application Laid-Open No. 6-329838 disclose a metallic soap having a specific ratio of cobalt to nickel, as an adhesion improving material. Japanese Patent Application Laid-Open No. 6-329840 discloses a metallic soap having a specific ratio of cobalt to zinc, as an adhesion improving material. Although the above substances have a good adhesive property in a specific aspect, they still fail to show a well-balanced adhesive strength as a whole.

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2014年5月27日星期二

silane moisture scavengers


Silane moisture scavengers have many properties are as follows:

Silane AC-231, as RTV silicone rubber crosslinking agent, as well as the silicon resin raw material, also can handle all kinds of inorganic packing.
Used as room temperature vulcanization silicone rubber crosslinking agent, glass fiber reinforced plastic laminated products and the agents, silicon dioxide coupling agent.
Meanwhile, it is also can be used in the manufacture of organic silicon compounds. Silane AC-231, as room temperature Vulcanization silicone rubber crosslinking agent, glassfiber reinforced plastic laminated products and the treatment of SiO2 coupling agent.

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2014年5月26日星期一

resin modifier



Phenolic resin modifier for wet curtain paper and phenolic resin for wet curtain Provided are a modifier for polyolefin resin which imparts excellent wettability for water, etc. to a polyolefin resin substrate without decreasing the resin property of the polyolefin resin substrate composed of polyolefin resin, and a polyolefin resin composition containing the modifier and a polyolefin resin. The present invention relates to a modifier for polyolefin resin (K) containing polyolefin (A) and unsaturated dicarboxylic acid (anhydride)(B) as a constitutional unit, and a copolymer (X) having an acid value of 50 to 250 mg KOH/g.

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