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1. WO1990013577 - PROCESS FOR PREPARING SUBSTANTIALLY PURE HIGH MOLECULAR WEIGHT VINYL LACTAM-QUATERNIZED ACRYLAMIDE COPOLYMERS

Publication Number WO/1990/013577
Publication Date 15.11.1990
International Application No. PCT/US1990/001839
International Filing Date 09.04.1990
Chapter 2 Demand Filed 18.10.1990
IPC
A61K 8/81 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
81obtained by reactions involving only carbon-to-carbon unsaturated bonds
A61Q 5/02 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
5Preparations for care of the hair
02Preparations for cleaning the hair
A61Q 5/04 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
5Preparations for care of the hair
04Preparations for permanent waving or straightening the hair
A61Q 5/06 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
5Preparations for care of the hair
06Preparations for styling the hair, e.g. by temporary shaping or colouring
A61Q 5/12 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
5Preparations for care of the hair
12Preparations containing hair conditioners
A61Q 19/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
19Preparations for care of the skin
CPC
A61K 8/817
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
81obtained by reactions involving only carbon-to-carbon unsaturated bonds
817Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions or derivatives of such polymers, e.g. vinylimidazol, vinylcaprolactame, allylamines (Polyquaternium 6)
A61K 8/8182
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
81obtained by reactions involving only carbon-to-carbon unsaturated bonds
817Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions or derivatives of such polymers, e.g. vinylimidazol, vinylcaprolactame, allylamines (Polyquaternium 6)
8182Copolymers of vinyl-pyrrolidones. Compositions of derivatives of such polymers
A61Q 19/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
19Preparations for care of the skin
A61Q 5/02
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
5Preparations for care of the hair
02Preparations for cleaning the hair
A61Q 5/04
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
5Preparations for care of the hair
04Preparations for permanent waving or straightening the hair
A61Q 5/06
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
5Preparations for care of the hair
06Preparations for styling the hair, e.g. by temporary shaping or colouring
Applicants
  • GAF CHEMICALS CORPORATION [US]/[US]
Inventors
  • TAZI, Mohammed
Agents
  • MAUE, Marilyn, J.
Priority Data
345,82001.05.1989US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR PREPARING SUBSTANTIALLY PURE HIGH MOLECULAR WEIGHT VINYL LACTAM-QUATERNIZED ACRYLAMIDE COPOLYMERS
(FR) PROCEDE DE PREPARATION DE COPOLYMERES SENSIBLEMENT PURES, DE LACTAME DE VINYLE-ACRYLAMIDE QUATERNISE DE POIDS MOLECULAIRE ELEVE
Abstract
(EN)
The invention relates to the production of high molecular weight vinyl lactam-quaternized amino acrylamide copolymers having less than 0.1 % residual unreacted monomer, which comprises: subjectinmg the monomers to solution polymerization in the presence of a buffering agent having chelating properties for complexing with traces of heavy metals; controlling the pH of the polymerization to a level above 5.5 while continuously ebulating nitrogen gas through the system during reaction and incrementally adding a free radical initiator in 2 to 4 stages during the conversion to copolymer. The invention also relates to the substantially pure vinyl lactam-acrylamide copolymer having a Brookfield viscosity of at least 75,000 cps. and a residual monomer content below 0.5 wt. %, for example less than 1,000 ppm.
(FR)
L'invention concerne la production de copolymères de poids moléculaire élevé de lactame de vinyle-amino acrylamide quaternisé, comportant moins de 0,1 % de monomère résiduel n'ayant pas réagi, consistant: à soumettre les monomères à une polymérisation en solution en présence d'un agent de tamponnement, présentant des propriétés de chélation, afin de former des complexes avec des traces de métaux lourds; à établir le pH de la polymérisation à un niveau supérieur à 5,5, tout en portant à ébullition de manière continue du gaz d'azote dans le système, pendant la réaction, et à ajouter de manière progressive une amorce à radical libre en deux à quatre étapes, pendant la transformation en copolymère. L'invention concerne également le copolymère sensiblement pur de lactame de vinyle-acrylamide, ayant une viscosité Brookfield d'au moins 75000 cps, et une teneur en monomère résiduel inférieure à 0,5 % en poids, par exemple inférieure à 1000 ppm.
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