Silicone polymer network compositions

• US 6,444,745 B1
• Filed: 06/12/2000
• Issued: 09/03/2002
• Est. Priority Date: 06/12/2000
• Status: Expired due to Term

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Kilgour, John A., Chaiyawat, Atchara, OʼBrien, Michael J.
• Primary Examiner(s): Dawson, Robert
• Assistant Examiner(s): PENG, KUO LIANG
• Application Number:
  US09/592,193
• Time in Patent Office: 813 Days
• Field of Search: 524/588, 524/612, 524/858, 524/860, 524/863, 528/408, 528/418, 424/486
• US Class Current: 524/588
• CPC Class Codes: A61K 8/894 modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• CPC Class Codes: A61Q 1/02 Preparations containing skin colorants, e.g. pigments preparations in powder form A61Q1/12
• CPC Class Codes: A61Q 1/06 Lipsticks
• CPC Class Codes: A61Q 15/00 Anti-perspirants or body deodorants deodorisation of air A61L9/00
• CPC Class Codes: A61Q 17/04 Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 3/00 Manicure or pedicure preparations
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: A61Q 5/12 Preparations containing hair conditioners
• CPC Class Codes: C08L 83/00 Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 83/12 containing polyether sequences

Abstract

A silicone composition containing a polyethersiloxane block copolymer network and a fluid within the network is useful as a component of various personal care compositions.

Claims

1. A silicone composition, comprising:

(a) a polyethersiloxane block copolymer network, comprising;

one or more polyether blocks, each comprising two or more structural units of the formula (I);

2. The composition of claim 1, wherein each said divalent hydrocarbon radical is independently alkylene according to the formula:

3. The composition of claim 1, wherein each R² is independently a trivalent hydrocarbon radical according to formula (V) or (VI):

wherein each R⁵ and R⁶ is independently a divalent hydrocarbon radical, and

A is a saturated or unsaturated monocyclic hydrocarbon ring of, including the carbon atoms of the —

CHCH—

moiety set forth in formula (VI), from 5 to 12 carbon atoms, which may, optionally, be substituted on one or more carbon atoms of the ring, in addition to the carbon atom bearing the —

R⁶-moiety.

4. The composition of claim 1, wherein each R³ is independently alkyl, hydroxyalkyl, a polyhydric alcohol radical, monocyclic aromatic, aralkyl, oxaalkylene or alkylcarbonyloxaalkylene.

5. The composition of claim 4, wherein one or more R³ substituents is each independently (C₁-C₆₀)alkyl, hydroxy(C₁-C₁₂)alkyl,

a polyhydric alcohol radical according to the formula (XI), (XII) or (XIII):

6. The composition of claim 1, wherein, the fluid comprises one or more compounds that are in the liquid state at or near room temperature and about one atmosphere pressure.

7. The composition of claim 1, wherein, the fluid comprises one or more of silicone fluids and organic fluids.