摘要:
An object of the present invention is to provide a curable composition which is made mainly of a polymer having one or more reactive silicon groups, has good curability even when filler is used while a non-organotin catalyst is used, and is further high in industrial practicability. The object is solved by a curable composition, comprising, as constituents, a polymer (A) having one or more reactive silicon groups on average per molecule thereof, the reactive silicon group(s) being (each) a group which can be crosslinked by forming a siloxane bond, a Lewis acid and/or derivative thereof (B), an amine compound (C), a compound (D) having a reactive silicon group, and filler (E), and obtained by mixing the constituents with each other.
摘要:
A moisture curable polymer and a curable composition having superior curability are provided. A polymer having a silicon group represented by the general formula: —SiFaR1bZc (wherein, R1 represents any one of a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms, or an organosiloxy group represented by R23SiO— (R2 is each independently, a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms). Z is a hydroxyl group or a hydrolyzable group other than fluorine. a is any one of 1, 2, or 3; b is any one of 0, 1, or 2; c is any one of 0, 1, or 2; and a+b+c is 3. When b or c is 2, two R1 or two Z may be each the same or different) and a curable composition including this polymer, and a sealant and an adhesive in which the curable composition is used.
摘要翻译:提供了一种可湿固化聚合物和具有优异固化性的可固化组合物。 具有由以下通式表示的硅基的聚合物:-SiFaR1bZc(其中,R1表示取代或未取代的碳原子数1〜20的烃基或由R23SiO-表示的有机甲硅烷氧基(R2各自独立地为 取代或未取代的碳原子数1〜20的烃基)Z是除氟以外的羟基或水解性基团,a为1,2或3中任一个,b为0,1或2中任一个, c是0,1或2中的任一个; a + b + c为3.当b或c为2时,两个R 1或两个Z可以相同或不同)和包含该聚合物的可固化组合物和 使用可固化组合物的密封剂和粘合剂。
摘要:
Method for efficiently producing α-hetero-substituted alkylhalohydrosilane, and use thereof. A method for producing (A) a halohydrosilane compound represented by the general formula (1): H—SiR2c(CR13-bYb)aX3-a-c (1) (wherein, R1 represents a hydrogen atom or a substituted or unsubstituted hydrocarbon group; R2 represents a substituted or unsubstituted hydrocarbon group; X represents a halogen atom; Y represents a hetero substituent; a is 1 or 2; b is any one of 1, 2 and 3; c is 1 or 0), by allowing (B) a halosilane compound represented by the general formula (2): SiR2c(CR13-bYb)aX4-a-c (2) (wherein, R1, R2, X, Y, a, b and c are as defined above) to react with (C) a hydrosilane compound. A method for producing a reactive silicon group-containing polymer using the halohydrosilane compound (A).
摘要:
[Problem] There is provided a curable composition having good curability and adhesion by use of a non-organotin catalyst.[Means to Solve] A curable composition comprising (A) an organic polymer having a silicon-containing group being capable of crosslinking by forming siloxane bonds, (B) one or more kinds selected from a titanium catalyst, an aluminum catalyst and a zirconium catalyst and (C) a low molecular weight compound containing a hydrolyzable silicon group and having a molecular weight of from 100 to 1,000, characterized in that a ratio (a/b) of the total mole (a) of titanium atoms, aluminum atoms and zirconium atoms of the component (B) in the composition to the total mole (b) of silicon atoms of the component (C) in the composition is more than 0.4.
摘要:
The present invention has its object to provide a curable composition excellent in curability and storage stability.The present invention relates to a curable composition which comprises, for instance,(A) an organic polymer having a silicon-containing group capable of crosslinking under siloxane bond formation, (B) a carboxylic acid metal salt (b1) and/or a carboxylic acid (b2), and (C) an organic sulfonic acid ester represented by the general formula (1): R1SO3R2 (1) (wherein R1 and R2 each independently represents a substituted or unsubstituted hydrocarbon group).
摘要:
The present invention has its object to provide, by using a non-organotin curing catalyst, a curable composition having a practical level of curability. Furthermore, the present invention has its object to provide a curable composition excellent in adhesiveness while it secures a practical level of curability.The present invention relates to a curable composition which comprises:(A) an organic polymer containing a silicon-containing group capable of crosslinking by siloxane bond formation and (B) a silanol condensation catalyst: and that the silanol condensation catalyst is an amine compound and that an aqueous solution prepared by adding 5 millimoles of the amine compound to 100 g of a mixed solvent composed of isopropyl alcohol and water in a weight ratio of 10:3 has a pH value of not lower than 13.4 as measured at 23° C. according to JIS Z 8802.
摘要翻译:本发明的目的是通过使用非有机锡固化催化剂来提供具有实用的固化性水平的可固化组合物。 此外,本发明的目的是提供一种固化性优异的固化性组合物,同时确保了固化性的实用性。 本发明涉及一种可固化组合物,其包含:(A)含有能够通过硅氧烷键形成交联的含硅基团的有机聚合物和(B)硅烷醇缩合催化剂;所述硅烷醇缩合催化剂是胺化合物, 通过向100g由异丙醇和水组成的混合溶剂中加入5毫摩尔胺化合物而制备的水溶液,其重量比为10:3,在23℃下测得的pH值不低于13.4。 根据JIS Z 8802。
摘要:
The present invention provides a curable composition which has a high recovery ratio, a high creep resistance, a practical curability and storage stability. The present invention relates to a curable composition comprising a reactive silicon group containing organic polymer (A) and a carboxylic acid (B), wherein the composition comprises (I), as the carboxylic acid (B), a carboxylic acid (C) in which the carbon adjacent to the carbonyl group is a quaternary carbon atoms and/or the composition comprises (II) a metal carboxylate (D) formed between a carboxylic acid in which the carbon atoms adjacent to the carbonyl group is a quaternary carbon atoms and a metal atom of 208 or less in atomic weight.
摘要:
The present invention has its object to provide a one package curable composition which has good adhesion while containing an organotin-free catalyst.The present invention provides a one package curable composition which comprises (A) an organic polymer having a silicon-containing group capable of crosslinking by forming a siloxane bond, (B) a carboxylic acid metal salt (b1) and/or a carboxylic acid (b2), (C) a filler, and (D) an amino group-containing silane coupling agent: and has the total amount of carbonyl group composing an acid group in the component (B) per 100 g of the component (A) of 12 mmol or lower; contains substantially no organotin compound; and has the water content of 2,000 ppm or lower.
摘要:
A curable composition is characterized by comprising an organic polymer having at least one silicon-containing group which has a hydroxy or hydrolyzable group bonded to the silicon atom and which is crosslinkable by forming siloxane bonds, and a specific metal salt of a carboxylic acid. The composition ensures practical curability and recovery properties and has mechanical properties including high strength and high elongation.
摘要:
An object of the present invention is to provide a curable composition that can be used as sealing materials, adhesives, and the like, has excellent curing properties, and gives a cured product excellent in elongation properties. The object can be attained by means of a curable composition comprising: a reactive silyl group-containing polyether polymer (A) that contains a reactive silyl group with high activity (e.g., (ClCH2)(CH3O)2Si—, (CH3OCH2)(CH3O)2Si—, or CH3(CH3O)2Si—CH2—NH—C(═O)—); and a reactive silyl group-containing polyether polymer (B) that contains a reactive silyl group (e.g., CH3(CH3O)2Si— or (CH3O)3Si—) different from that mentioned above and/or a (meth)acrylic polymer (C) containing a reactive silyl group that is not particularly limited.