Patent EP0750899A2 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0750899A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

An emulsifier or solubilizer which consists of a water soluble amphiphilic polyelectrolyte, and an emulsified composition or a solubilized composition and an emulsified cosmetic or a solubilized cosmetic containing it

Assignee: Shiseido Co Ltd
•
Filing: 1996-06-27
•
Granted: —
•
Expires: 2016-06-27
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An emulsified composition and emulsified cosmetic or a solubilized composition and solubilized cosmetic with good stability and usability can be provided by using an emulsifier or a solubilizer consisting of a water soluble amphiphilic polyelectrolyte obtained by copolymerizing (meth)acrylamido alkylsulfonic acid and N-substituted (meth)acrylamide. Also, an emulsified composition and emulsified cosmetic or a solubilized composition and solubilized cosmetic with good stability and usability can be provided by using an emulsifier or a solubilizer consisting of a water soluble cross-linked amphiphilic polyelectrolyte obtained by copolymerizing (meth) acrylamido alkylsulfonic acid, N-substituted (meth) acrylamide and a cross-linking agent. Furthermore, an emulsified composition and emulsified cosmetic or a solubilized composition and solubilized cosmetic with good stability and usability can be provided by using an emulsifier or a solubilizer consisting of a water soluble amphiphilic polyelectrolyte obtained by copolymerizing (meth) acrylamido alkylsulfonic acid and (meth)acrylate. Also, an emulsified composition and emulsified cosmetic or a solubilized composition and solubilized cosmetic with good stability and usability can be provided by using an emulsifier or a solubilizer consisting of a water soluble cross-linked amphiphilic polyelectrolyte obtained by copolymerizing (meth) acrylamido alkylsulfonic acid (meth)acrylate and a cross-linking agent.

Inventors

  • 👤 Atsushi c/o Shiseido Research Center Kobayashi
  • 👤 Fumiaki c/o Shiseido Research Center Matsuzaki
  • 👤 Toshio c/o Shiseido Research Center Yanaki
  • 👤 Michihiro c/o Shiseido Research Center Yamaguchi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 17:10
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/52; C08F220/54; A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/18; A61K8/72; A61K8/81; A61K8/8141; A61K8/8158; A61Q; A61Q19/00; A61Q5/00; C08F8/00; C08F8/44

Claims Analysis

Total Claims: 22
Claim 1
Independent Claim 32 words
An emulsifier which consists of a water soluble amphiphilic polyelectrolyte obtained by copolymerizing (meth)acrylamido alkylsulfonic acid and/or its salt and N-substituted (meth)acrylamide, or by neutralizing the obtained copolymer with an alkali agent.
Claim 2
Dependent Claim 37 words
An emulsifier which consists of a water soluble cross-linked amphiphilic polyelectrolyte obtained by copolymerizing (meth)acrylamido alkylsulfonic acid and/or its salt, N-substituted (meth)acrylamide and a cross-linking agent, or by neutralizing the obtained cross-linked copolymer with an alkali agent.
Claim 3
Dependent Claim 31 words
An emulsifier which consists of a water soluble amphiphilic polyelectrolyte obtained by copolymerizing (meth)acrylamido alkylsulfonic acid and/or its salt and (meth)acrylate, or by neutralizing the obtained copolymer with an alkali agent.
Claim 4
Dependent Claim 37 words
An emulsifier which consists of a water soluble cross-linked amphiphilic polyelectrolyte obtained by copolymerizing (meth)acrylamido alkylsulfonic acid and/or its salt, (meth)acrylate and a cross-linking agent, or by neutralizing the obtained cross -linked copolymer with an alkali agent.
Claim 5
Dependent Claim 26 words
The emulsifier of claim 1 or 2 wherein at least 15 wt% of the total of said water soluble amphiphilic polyelectrolyte is (meth)acrylamido alkylsulfonic acid units.
Claim 6
Dependent Claim 26 words
The emulsifier of claim 1 or 2 wherein at least 40 wt% of the total of said water soluble amphiphilic polyelectrolyte is N-substituted (meth) acrylamide units.
Claim 7
Dependent Claim 26 words
The emulsifier of claim 3 or 4 wherein at least 60 wt% of the total of said water soluble amphiphilic polyelectrolyte is (meth)acrylamido alkylsulfonic acid units.
Claim 8
Dependent Claim 24 words
The emulsifier of claim 3 or 4 wherein at least 1 wt% of the total of said water soluble amphiphilic polyelectrolyte is (meth)acrylate units.
Claim 9
Dependent Claim 13 words
An emulsified composition comprising the emulsifier of claim 1, 2, 3 or 4.
Claim 10
Dependent Claim 17 words
The emulsified composition of claim 9 wherein the blend ratio of said emulsifier is 0.1 -20 wt%.
Claim 11
Dependent Claim 13 words
An emulsified cosmetic comprising the emulsifier of claim 1, 2, 3 or 4.
Claim 12
Dependent Claim 32 words
A solubilizer which consists of a water soluble amphiphilic polyelectrolyte obtained by copolymerizing (meth)acrylamido alkylsulfonic acid and/or its salt and N-substituted (meth)acrylamide, or by neutralizing the obtained copolymer with an alkali agent.
Claim 13
Dependent Claim 37 words
A solubilizer which consists of a water soluble cross-linked amphiphilic polyelectrolyte obtained by copolymerizing (meth)acrylamido alkylsulfonic acid and/or its salt, N-substituted (meth)acrylamide and a cross-linking agent, or by neutralizing the obtained cross-linked copolymer with an alkali agent.
Claim 14
Dependent Claim 31 words
A solubilizer which consists of a water soluble amphiphilic polyelectrolyte obtained by copolymerizing (meth)acrylamido alkylsulfonic acid and/or its salt and (meth)acrylate, or by neutralizing the obtained copolymer with an alkali agent.
Claim 15
Dependent Claim 37 words
A solubilizer which consists of a water soluble cross-linked amphiphilic polyelectrolyte obtained by copolymerizing (meth)acrylamido alkylsulfonic acid and/or its salt, (meth)acrylate and a cross-linking agent, or by neutralizing the obtained cross -linked copolymer with an alkali agent.
Claim 16
Dependent Claim 26 words
The solubilizer of claim 12 or 13 wherein at least 15 wt% of the total of said water soluble amphiphilic polyelectrolyte is (meth)acrylamido alkylsulfonic acid units.
Claim 17
Dependent Claim 26 words
The solubilizer of claim 12 or 13 wherein at least 40 wt% of the total of said water soluble amphiphilic polyelectrolyte is N-substituted (meth) acrylamide units.
Claim 18
Dependent Claim 26 words
The solubilizer of claim 14 or 15 wherein at least 60 wt% of the total of said water soluble amphiphilic polyelectrolyte is (meth)acrylamido alkylsulfonic acid units.
Claim 19
Dependent Claim 24 words
The solubilizer of claim 14 or 15 wherein at least 1 wt% of the total of said water soluble amphiphilic polyelectrolyte is (meth)acrylate units.
Claim 20
Dependent Claim 13 words
A solubilized composition comprising the solubilizer of claim 12, 13 14 or 15.
Claim 21
Dependent Claim 16 words
The solubilized composition of claim 20 wherein the blend ratio of said solubilizer is 0.01-20 wt%.
Claim 22
Dependent Claim 13 words
A solubilized cosmetic comprising the solubilizer of claim 12, 13, 14 or 15.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag