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US-2024384050-A1 · Nov 21, 2024 · US
Amphiphilic resin-linear organosiloxane block copolymers
US9045599B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9045599-B2 |
| Application number | US-201314385589-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 28, 2013 |
| Priority date | Mar 28, 2012 |
| Publication date | Jun 2, 2015 |
| Grant date | Jun 2, 2015 |
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Abstract
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Amphiphilic organosiloxane block copolymers and methods for making them are disclosed. The compositions incorporate an amphiphilic “linear” segment with a “resinous” segment. For example, a polyether (A) modified PDMS (B) with (AB)n architecture and polydiorganosiloxane with Si—H end-groups can be reacted with a phenyl silsesquioxane resin bearing vinyl functionality to form an amphiphilic resin-linear copolymer.
First claim
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What is claimed is: 1. A resin-linear organosiloxane block copolymer comprising: i) a linear block of repeating units having the formula B-[AB] n wherein: B is a diorganopolysiloxane having an average of from 10 to 400 disiloxy units of the formula [R 1 2 SiO 2/2 ] A is a divalent organic group comprising at least one polyether group, and n is ≧1 ii) a resinous block of repeating units of the formula [R 2 SiO 3/2 ] arranged in non-linear blocks having a molecular we…
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- What does patent US9045599B2 cover?
- Amphiphilic organosiloxane block copolymers and methods for making them are disclosed. The compositions incorporate an amphiphilic “linear” segment with a “resinous” segment. For example, a polyether (A) modified PDMS (B) with (AB)n architecture and polydiorganosiloxane with Si—H end-groups can be reacted with a phenyl silsesquioxane resin bearing vinyl functionality to form an amphiphilic resi…
- Who is the assignee on this patent?
- Dow Corning
- What technology area does this patent fall under?
- Primary CPC classification C08G77/46. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 02 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).