CA2236593A1 - Silicone polymer-coated hydrophobized metal oxides - Google Patents

Silicone polymer-coated hydrophobized metal oxides

Info

Publication number
CA2236593A1
CA2236593A1 CA002236593A CA2236593A CA2236593A1 CA 2236593 A1 CA2236593 A1 CA 2236593A1 CA 002236593 A CA002236593 A CA 002236593A CA 2236593 A CA2236593 A CA 2236593A CA 2236593 A1 CA2236593 A1 CA 2236593A1
Authority
CA
Canada
Prior art keywords
metal oxide
silicone polymer
metal oxides
hydrophobic
hydrophobized metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002236593A
Other languages
French (fr)
Other versions
CA2236593C (en
Inventor
Mark Mitchnick
Anthony J. O'lenick, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAMBENT TECHNOLOGIES CORP
Sun Smart Inc
Original Assignee
Sunsmart, Inc.
Mark Mitchnick
Anthony J. O'lenick, Jr.
Siltech, Inc.
Lambent Technologies, Inc.
Lambent Technologies Corp.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/549,873 external-priority patent/US5536492A/en
Priority claimed from US08/603,636 external-priority patent/US5565591A/en
Priority claimed from US08/629,931 external-priority patent/US5562897A/en
Application filed by Sunsmart, Inc., Mark Mitchnick, Anthony J. O'lenick, Jr., Siltech, Inc., Lambent Technologies, Inc., Lambent Technologies Corp. filed Critical Sunsmart, Inc.
Priority claimed from PCT/US1996/016121 external-priority patent/WO1997016156A1/en
Publication of CA2236593A1 publication Critical patent/CA2236593A1/en
Application granted granted Critical
Publication of CA2236593C publication Critical patent/CA2236593C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

A process for making metal oxide hydrophobic by coating the metal oxide with a silicone polymer is disclosed. The hydrophobic metal oxide is prepared by contacting the metal oxide with a reactive silicone compound and then in a subsequent step the coated metal oxide is heated to 40 to 100 °C for between 1 and 10 hours. The resulting metal oxide is hydrophobic, non-reactive, not affected by water and can be applied to the skin for protection from ultraviolet light of the sun.
CA002236593A 1995-10-30 1996-10-08 Silicone polymer-coated hydrophobized metal oxides Expired - Lifetime CA2236593C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US08/549,873 1995-10-30
US08/549,873 US5536492A (en) 1995-06-14 1995-10-30 Cosmetic compositions containing hydrophobized zinc oxide
US08/603,636 US5565591A (en) 1995-06-14 1996-02-20 Silicone polymers for the modification of titanium dioxide
US08/603,636 1996-02-20
US08/629,931 US5562897A (en) 1995-06-14 1996-04-12 Method of protecting the skin
US08/629,931 1996-04-12
PCT/US1996/016121 WO1997016156A1 (en) 1995-10-30 1996-10-08 Silicone polymer-coated, hydrophobized metal oxides

Publications (2)

Publication Number Publication Date
CA2236593A1 true CA2236593A1 (en) 1997-05-09
CA2236593C CA2236593C (en) 2006-03-28

Family

ID=36123380

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002236593A Expired - Lifetime CA2236593C (en) 1995-10-30 1996-10-08 Silicone polymer-coated hydrophobized metal oxides

Country Status (1)

Country Link
CA (1) CA2236593C (en)

Also Published As

Publication number Publication date
CA2236593C (en) 2006-03-28

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Legal Events

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Effective date: 20161011