Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ROOM TEMPERATURE VULCANISABLE SILICONE COMPOSITIONS
The invention provides a silicone elastomer composition which is storage stable, and cures to an elastomeric body, comprising (i) an organopolysiloxane polymer having at least two hydroxyl or hydrolysable groups (ii) a siloxane and/or silane cross-linker having at least three groups per molecule which are reactable with the hydroxyl or hydrolysable groups in organopolysiloxane polymer (i); (iii) a solid organosilicate resin which is substantially unreactive with components (i) and (ii) comprising R23SiO1/2 siloxane units and SiO4/2 siloxane units, wherein the molar ratio of the R23SiO1/2 siloxane units to SiO4/2 siloxane units is from 0.5 : 1 to 1.2 : 1, R2 is selected from hydrocarbon groups; and optionally (iv) a suitable condensation cure catalyst. The unreactive organosilicate resin is utilised to create a low modulus room temperature vulcanisable (RTV) silicone composition which when cured may be used as a coating, adhesive or a sealant having high movement capability.
本发明提供了一种储存稳定并且固化成弹性主体的有机硅弹性体组合物，该有机硅弹性体组合物包含：(i)具有至少两个羟基基团或可水解基团的有机聚硅氧烷聚合物；(ii)硅氧烷和/或硅烷交联剂，其每分子具有至少三个基团，所述基团能够与有机聚硅氧烷聚合物(i)中的羟基或可水解基团反应；(iii)固体有机硅酸盐树脂，其与组分(i)和(ii)基本上无反应性，包含R23SiO1/2硅氧烷单元和SiO4/2硅氧烷单元，其中R23SiO1/2硅氧烷单元与SiO4/2硅氧烷单元的摩尔比为0.5:1至1.2:1，R2选自烃基团；以及任选地(iv)合适的缩合固化催化剂。使用无反应性有机硅酸盐树脂产生低模量室温可硫化(RTV)有机硅组合物，当固化时，该组合物可用作具有高移动能力的涂层、粘合剂或密封剂。
ROOM TEMPERATURE VULCANISABLE SILICONE COMPOSITIONS
The invention provides a silicone elastomer composition which is storage stable, and cures to an elastomeric body, comprising (i) an organopolysiloxane polymer having at least two hydroxyl or hydrolysable groups (ii) a siloxane and/or silane cross-linker having at least three groups per molecule which are reactable with the hydroxyl or hydrolysable groups in organopolysiloxane polymer (i); (iii) a solid organosilicate resin which is substantially unreactive with components (i) and (ii) comprising R23SiO1/2 siloxane units and SiO4/2 siloxane units, wherein the molar ratio of the R23SiO1/2 siloxane units to SiO4/2 siloxane units is from 0.5 : 1 to 1.2 : 1, R2 is selected from hydrocarbon groups; and optionally (iv) a suitable condensation cure catalyst. The unreactive organosilicate resin is utilised to create a low modulus room temperature vulcanisable (RTV) silicone composition which when cured may be used as a coating, adhesive or a sealant having high movement capability.
本发明提供了一种储存稳定并且固化成弹性主体的有机硅弹性体组合物，该有机硅弹性体组合物包含：(i)具有至少两个羟基基团或可水解基团的有机聚硅氧烷聚合物；(ii)硅氧烷和/或硅烷交联剂，其每分子具有至少三个基团，所述基团能够与有机聚硅氧烷聚合物(i)中的羟基或可水解基团反应；(iii)固体有机硅酸盐树脂，其与组分(i)和(ii)基本上无反应性，包含R23SiO1/2硅氧烷单元和SiO4/2硅氧烷单元，其中R23SiO1/2硅氧烷单元与SiO4/2硅氧烷单元的摩尔比为0.5:1至1.2:1，R2选自烃基团；以及任选地(iv)合适的缩合固化催化剂。使用无反应性有机硅酸盐树脂产生低模量室温可硫化(RTV)有机硅组合物，当固化时，该组合物可用作具有高移动能力的涂层、粘合剂或密封剂。
ROOM TEMPERATURE VULCANISABLE SILICONE COMPOSITIONS
室温可硫化有机硅组合物
SEITZ AARON (Autor:in) / REPOLLET-PEDROSA MILTON H (Autor:in) / NESBITT ROCHELLE (Autor:in) / GORDON GLENN (Autor:in)
11.02.2022
Patent
Elektronische Ressource
Chinesisch
Mixing of Vulcanisable Rubbers and Thermoplastic Elastomers
| British Library Online Contents | 2004