scispace - formally typeset
Patent

High strength organopolysiloxane compositions

Reads0
Chats0
TLDR
In this paper, an organopolysiloxane composition combining high strength with exceptionally good elongation is provided, which composition comprises a first component, a mixture of two vinylcontaining polysiloxanes or blends of vinyl-containing polyiloxanes, a filler and an effective amount of a platinum catalyst, and when it is desired to cure the composition into an elastomer, the first component is mixed with the second component, that is, the hydrogen containing silane or poly-oxane and the mixture is allowed to cure either at room temperature or at elevated temperatures.
Abstract
There is provided an organopolysiloxane composition combining high strength with exceptionally good elongation, which composition comprises a first component, a mixture of two vinylcontaining polysiloxanes or blends of vinyl-containing polysiloxanes, one of which is a high viscosity polysiloxane or a blend of high viscosity polysiloxanes, the other is a low viscosity polysiloxane or a blend of low viscosity vinylcontaining polysiloxanes, a filler and an effective amount of a platinum catalyst. The second component comprises a hydrogen-containing silane or polysiloxane. When it is desired to cure the composition into an elastomer the first component is mixed with the second component, that is, the hydrogen containing silane or polysiloxane and the mixture is allowed to cure either at room temperature or at elevated temperatures. Part of the total high viscosity vinylcontaining polymer can be mixed with the second component.

read more

Citations
More filters
Patent

Valving slit construction and cooperating assembly for penetrating the same

TL;DR: In this paper, the authors proposed an improvement in the implantable shunt device of the type disclosed in U.S. Pat. No. 4,181,132 wherein each valving slit within the elastomeric body of the shunt is formed by a flattened sleeve of woven vascular prosthesis material presenting opposed interior surfaces interengaged when the valving was in a closed condition and spaced apart when the saliency was in an open condition.
Patent

Siliconized surgical needle and method for its manufacture

TL;DR: In this article, a siliconized surgical needle is provided, which requires significantly less force to effect tissue penetration than a standard siliconized needle, and can be used for needle insertion.
Patent

Silicone gel filled prosthesis

TL;DR: A prosthesis for subcutaneous implantation in a patient comprising a flexible sac and a silicone gel contained within the sac is described in this paper, where the wall is comprised of at least one continuous layer of silicone elastomer which substantially impedes the migration of said silicone gel from the sac.
Patent

Adhesive composition comprising a polysiloxane

TL;DR: A polysiloxane adhesive composition that is useful in attaching products to human skin is presented in this article, where a disposable absorbent product may be prepared that includes the polysiloxide adhesive composition and that may be adhered directly to the human skin and peeled off after use with little or no pain to the wearer.
Patent

Addition curing silicone compositions

TL;DR: An addition curing silicone composition with a low viscosity in the uncured state and high physical strength in the cured state comprising a vinyl-containing diorganopolysiloxane polymer, a platinum catalyst, a hydride cross-linking agent and a linear hyddride coupler was presented in this paper.
References
More filters
Patent

Room temperature-curable organopolysiloxane compositions

TL;DR: In this article, a rubber-like elastomer with a very low modulus and a high elongation as high as 1400% or more is described, which is the state-of-the-art.