Invention Grant
- Patent Title: MQ resins from stable ethylsilicate polymers
- Patent Title (中): 来自稳定的硅酸乙酯聚合物的MQ树脂
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Application No.: US12983540Application Date: 2011-01-03
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Publication No.: US08829144B2Publication Date: 2014-09-09
- Inventor: Walter L. Magee , Adam W. Emerson , Wallace G. Joslyn , Richard S. Odneal
- Applicant: Walter L. Magee , Adam W. Emerson , Wallace G. Joslyn , Richard S. Odneal
- Applicant Address: US MI Weston
- Assignee: Silbond Corporation
- Current Assignee: Silbond Corporation
- Current Assignee Address: US MI Weston
- Agency: Dickinson Wright PLLC
- Main IPC: C08G77/04
- IPC: C08G77/04 ; C08G77/02 ; C07F7/02 ; C08L83/04 ; C08G77/00 ; C08K3/36

Abstract:
An MQ resin including at least 30% SiO2, preferably at least 50 wt % SiO2, and having dynamic viscosity of 50 centipoises (cps) to 750 cps at 25° C. is produced from a stable ethylsilicate polymer. The ethylsilicate polymer includes not greater than 1 wt % of TEOS monomer. The ethylsilicate polymer is produced by a two step addition of catalysts wherein a hydrolysis catalyst, for example, hydrochloric acid is added initially and a second catalyst, such as phosphonitrilic chloride trimer, is added subsequently.
Public/Granted literature
- US20110184142A1 MQ Resins From Stable Ethylsilicate Polymer Polymers Public/Granted day:2011-07-28
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