Supercharge Your Innovation With Domain-Expert AI Agents!

Water-dispersible, cationic polymers, a method of making same and items using same

A technology of polymers and cationic monomers, applied in the direction of medical preparations containing active ingredients, detergent compositions, cosmetic preparations, etc., can solve problems such as difficult to apply fiber webs, no commercial application prospects, high viscosity, etc.

Inactive Publication Date: 2005-04-20
KIMBERLY-CLARK WORLDWIDE INC
View PDF47 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high viscosity of carboxymethyl cellulose, which makes it difficult to apply to the web, the presence of

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0189] The polymer is synthesized by free radical polymerization by varying the combination of the following monomers: acrylic acid, acrylamide, butyl acrylate, 2-ethylhexyl acrylate, and [2-(methacryloyloxy)ethyl]trimethyl Ammonium Chloride ("MQUAT"). Each polymerization was carried out in methanol. Typical steps are described below.

[0190] Acrylamide (39.1 g, 0.55 mol), butyl acrylate (32.0 g, 0.25 mol), 2-ethylhexyl acrylate (18.4 g, 0.10 mol) and MQUAT (27.6 g of a 75% by weight solution, 0.10 mol) Dissolved in 50g methanol. The radical initiator 2,2'-azobisisobutyronitrile ("AIBN") (0.66 g, 4.0 x 10' mol) was dissolved in 20 ml methanol. Will N 2 The monomer solution was deoxygenated by bubbling it through for 20 minutes. To a 1000 ml round bottom three neck flask equipped with a condenser, two addition funnels and a magnetic stirrer was added 125 g of methanol. The solvent was heated to slight reflux under nitrogen. The monomer and initiator were added simultane...

Embodiment 2

[0213] polymerization:

[0214] The polymer was synthesized by radical polymerization in the same manner as above. The ratios of MQUAT, n-butyl acrylate (BA) and 2-ethylhexyl acrylate (EHA) are listed in Table 10.

[0215] pass 13 The polymer composition was characterized by C NMR, and the composition of each sample is shown in Table 11. In most cases the polymer composition is consistent with the charge ratio, differing only by a few percentage points. This is to be expected for homogeneous solution polymerizations, where all monomers have similar reactivity.

[0216] sample

[0217] sample

[0218] Sample Preparation:

[0219] Two substrate materials were used to evaluate the cationic adhesive. The first is a water dispersible wet-laid nonwoven fabric consisting of BFF rayon fibers (1.5d x 25mm). Each substrate is cut to a size of approximately 5.5in (CD) x 9in (MD). Put a piece of release paper on top of the notepad, then a base sheet. Secure the...

Embodiment 3

[0247] polymerization:

[0248] Cationic triggerable polymers were synthesized by radical polymerization in the same manner as above. MQUAT, n-butyl acrylate (BA) and 2-ethylhexyl acrylate (EHA) were used in the following proportions: MQUAT 20 mol%, BA 40 mol% and EHA 40 mol%. Its high salt solution such as 4 wt% ZnCl 2 It is stable in and soluble in water when the salt concentration drops below a certain level, such as below 0.5% by weight. Due to the nature of the charged groups carried by the polymer, its dispersibility is virtually unaffected by the presence of divalent cations such as up to 200 ppm of Ca 2+ and Mg 2+ impact, so the polymer performs well in even the hardest water found in American homes.

[0249] Wet wipe sample preparation:

[0250] To make wet wipe products, an aqueous ion-sensitive cationic polymer solution is applied to a substrate by spraying. The substrate was a water-dispersible wet-laid nonwoven fabric consisting of BFF rayon fibers (1.5d x 2...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention is directed to triggerable, water-dispersible cationic polymers. The invention is also directed to a process for the preparation of triggerable, water-dispersible cationic polymers and their use as adhesive compositions. The present invention is further directed to fibrous fabrics and webs comprising a triggerable, water dispersible adhesive composition and their use in water dispersible personal care products such as wet wipes.

Description

field of invention [0001] The present invention is directed to ion-sensitive or triggerable, water-dispersible or water-soluble cationic polymers and polymer formulations. The present invention is also directed to processes for the preparation of ion-sensitive or triggerable, water-dispersible or water-soluble cationic polymers and polymer formulations and their use as adhesive compositions for single-use articles. The present invention is further directed to single use articles, such as wet wipes, comprising an ion-sensitive or triggerable, water-dispersible adhesive composition comprising a cationic polymer or polymer formulation. Background of the invention [0002] For many years, disposable application problems have plagued the industry providing primary application articles such as diapers, wet wipes, incontinence garments and feminine care products. While great progress has been made in solving this problem, one of the weak points is the inability to produce economic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A47L13/16A47L13/17C07D403/06C08F220/18C08F220/34C08F220/36C08L33/06C09D133/06C11D17/04D04H1/64D21H19/20
CPCA61K8/0208A61K8/8158A61K2800/5426A61Q19/00C08F220/34C08L33/062C09D133/062C11D17/049C08F220/1804C08F220/1808D04H1/587D04H1/60D21H19/20Y10T442/20Y10T442/2352Y10T442/60C08F220/18C08F220/36
Inventor K·D·布兰哈姆Y·常F·J·朗E·麦克布赖德C·班亚德
Owner KIMBERLY-CLARK WORLDWIDE INC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com