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Inventor:
Buese; Mark A.
Address:
Upper Darby, PA
No. of patents:
7
Patents:












Patent Number Title Of Patent Date Issued
5347028 Highly functionalized polycyclosiloxanes and their polymerization into thermally reversible livi September 13, 1994
A composition curable to a thermally reversible rubber comprises(i) a strong acid catalyst having a pK.sub.a of less than about -9,(ii) at least one polycyclosiloxane containing at least one polyfunctional siloxane unit, and(iii) at least one polysiloxane selected from the group consisting of a
5330836 Functionalized silica particle and use thereof for cross-linking silicones July 19, 1994
Particulate fillers containing Si-OH groups are functionalized by treatment with a silica bonding agent. The treated particles are effectively polyfunctional, and may be used to prepare highly filled, cross-linked organopolysiloxane networks without the need for additional cross-linking
5298589 Highly functionalized polycyclosiloxanes and their polymerization into thermally reversible livi March 29, 1994
A composition curable to a thermally reversible rubber comprises(i) a strong acid catalyst having a pK.sub.a of less than about -9,(ii) at least one polycyclosiloxane containing at least one polyfunctional siloxane unit, and(iii) at least one polysiloxane selected from the group consisting of a
5254654 Monodispersed polydimethylsiloxane-.alpha.,.omega.-diol fluids and .alpha.,.omega.-substituted p October 19, 1993
The molecular weight distribution of polydimethylsiloxane-.alpha., .omega.-diol fluids is reduced by contacting the fluid with an alkaline earth metal hydride or hydroxide. Molecular weight distributions lower than Poisson distributions may be obtained. The resulting monodispersed po
5247116 Acid-catalyzed process for the production of cyclosiloxanes September 21, 1993
Cyclosiloxanes are produced by the acid-catalyzed redistribution of siloxane bonds in polysiloxane fluids at a temperature of about 20-200.degree. C. Little catalyst and no water or solvent is required. Cyclosiloxane product mixtures contain .ltoreq.1 wt. % cyclosiloxane species havi
4895968 Acid equilibration method for organcpolysiloxanes having carbon-silicon-bonded aromatic organic January 23, 1990
A method is provided for the acidic equilibration of aromatic organic-substituted siloxanes, such as diphthalic anhydrode tetraorganicsiloxane with poly(aliphatic organicsiloxane) without significant cleavage of carbon-silicon-bonded aromatic organic radicals. A reduction in the gene
4826710 Biscyclosiloxane imides, method of making and use May 2, 1989
Biscyclosiloxane imides such as 1,3-bis[5'-(heptamethylcyclotetrasiloxyl)-bicyclo[2.2.1]heptane-2',3'-dica rboxylicimido]phenylene are made by intercondensing the corresponding cyclicsiloxane norbornane anhydride with aromatic diamine. The biscylosiloxane imides can be converted to co










 
 
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