# US 8,084,019 B2 · Personal care fixative

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,084,019 B2
- Document ID: US8084019B2
- Status: Granted
- Kind: B2
- Application number: 12/883,820
- Filed: 2010-09-16
- Published: 2011-01-20
- Granted: 2011-12-27
- Earliest claimed: 2004-03-09
- Assignees: Interpolymer Corporation
- Inventors: Norwin W. Wolff; Timothy L. Martin; Thomas L. Hiff
- Web page: https://patentgrep.com/patent/US8084019B2

## CPC

- C08L 101/02: characterised by the presence of specified groups {, e.g. terminal or pendant functional groups}
- A61K 8/91: Graft copolymers (A61K8/89 takes precedence)
- A61Q 5/02: Preparations for cleaning the hair
- A61Q 5/06: Preparations for styling the hair, e.g. by temporary shaping or colouring
- A61Q 5/10: Preparations for permanently dyeing the hair
- C08J 3/246: {Intercrosslinking of at least two polymers}
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)

## Abstract

The present invention is directed to bimodal polymer compositions and personal care fixatives containing bimodal polymer compositions. The present invention includes a bimodal polymer composition having a first polymer with anionic character and a second polymer with cationic character and wherein the polymers form an interpenetrating polymer network. In one embodiment, the present invention also includes personal care fixatives (e.g., health care, hygiene or cosmetic compositions) containing the bimodal polymer composition. The present invention also includes methods for forming bimodal polymer compositions.

## Claims

### Claim 1

A method for forming a bimodal polymer composition, comprising the step of polymerizing monomers to form a first polymer having a first ionic character, in the presence of a second polymer having a second ionic character, and further in the presence of aqueous ammonia,
wherein said first polymer has a molecular weight ranging from about 1,000 daltons to about 1,000,000 daltons,
wherein said second polymer has a molecular weight ranging from about 1,000 daltons to about 1,000,000 daltons,
wherein the first and the second polymers form an interpenetrating polymer network, and
wherein the second polymer includes dimethyl amino ethyl methacrylate or a quaternized adduct thereof.