Supercharge Your Innovation With Domain-Expert AI Agents!

Ion-sensitive water-dispersible polymers, method of making same and product using same

A technology of ions and compositions, applied in the direction of anionic surface-active compounds, surface-active detergent compositions, detergent compositions, etc.

Inactive Publication Date: 2003-07-02
KIMBERLY-CLARK WORLDWIDE INC
View PDF37 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such products need to have a reasonable cost without compromising the safety and environmental factors of the product, and some things that past products cannot achieve

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ion-sensitive water-dispersible polymers, method of making same and product using same
  • Ion-sensitive water-dispersible polymers, method of making same and product using same
  • Ion-sensitive water-dispersible polymers, method of making same and product using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0180] Preparation of Acrylic Acid Terpolymer Modified by Sulfonate Anion

[0181] Acrylic acid (43.3g, 0.60 mole), AMPS (10.7g, 0.052 mole), butyl acrylate (35.2g, 0.27 mole), and 2-ethylhexyl acrylate (20g, 0.11 mole) were dissolved in 55g of acetone / in water (70 / 30) mixture. The initiator, 2,2-azobisisobutyronitrile (AIBN) (0.51g), 3.1×10 -3 mol), dissolved in 20ml of acetone. By adding N 2 The monomer solution was deoxygenated by bubbling through it for 20 minutes. To a 1000 ml three necked round bottom flask equipped with a condenser, two addition funnels and a magnetic stirrer was added 120 g of an acetone / water (70 / 30) mixture. The solvent was heated to reflux under nitrogen atmosphere. Monomer and initiator were added simultaneously from the addition funnel over 2 hours. The polymerization was allowed to proceed for an additional two hours, at the end of which time the addition funnel and condenser were replaced with a distillation head and mechanical stir bar t...

Embodiment 3

[0188] Preparation of ion-sensitive polymer formulations

[0189] The polymers prepared in Table 5, Sample 9 and Example 2 above were mixed with Dur-O-Set RB to form ion-sensitive polymer formulations of the present invention. The polymer formulations were prepared as shown in Table 6 below.

[0190]

[0191] Solubility of ion-sensitive polymer formulations

[0192] The sensitivity of the polymer formulation of Example 3 to the presence of divalent cations in hard water was measured. Samples 1-10 of Example 3 were placed with Ca varying from 2+ Several concentrations of CaCl 2 in solution. After soaking for 1 hour, the solubility of each polymer was noted. Solubility results are given in Table 7 below.

[0193] sample

[0194] In each case, films cast from blends containing NaAMPS were more soluble than films containing acrylic acid terpolymer, especially with increasing calcium ion concentration.

Embodiment 5

[0196] Test of cohesive strength of polymer formulations with and without crosslinking

[0197] For pilot scale experiments we used airlaid substrates of the pulp type (CF405 or NB416 pulp form Weyerhaeuser) bonded together with 2-5% bico fibers. The bico fibers were Type-255 with activated polyethylene sheath and polyester core (obtained from KoSa Fibers of Salisbury, NC) or Danaklon fibers with polyethylene sheath and polypropylene core (obtained from FiberVisions of Vbarde, Denmark). Both types of bico fibers are 2-3 denier and cut to 6mm lengths. The adhesive formulation was applied by spraying a 12-15% by weight solution onto both sides of the aforementioned substrate. The strength of the substrate under various conditions is reported after subtracting the basic strength of the sheet due to the bico fibers. Table 8 reports the strength of substrates with different formulations in 0.4% by weight NaCl (CDWT) and after soaking in deionized water for 1 hour (S-CDWT):

[01...

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

PropertyMeasurementUnit
strengthaaaaaaaaaa
lengthaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The present invention is directed to ion-sensitive, water-dispersible polymers. The present invention is also directed to a method of making ion-sensitive, water-dispersible polymers and their applicability as binder compositions. The present invention is further directed to fiber-containing fabrics and webs comprising ion-sensitive, water-dispersible binder compositions and their applicability in water-dispersible personal care products.

Description

technical field [0001] The present invention relates to ion sensitive water dispersible polymer formulations. The invention also relates to a process for the manufacture of ion-sensitive water-dispersible polymer formulations and their use as adhesive compositions for disposables. The present invention further relates to disposable articles, such as wet wipes, comprising the ion-sensitive water-dispersible adhesive composition. Background technique [0002] Disposal of single-use waste has plagued industries that provide disposable products such as diapers, wet wipes, incontinence garments and feminine care products for many years. Although important progress has been made in addressing this problem, one of the weak points is the inability to produce an economically bonded fibrous web that dissolves or disintegrates easily in water but still has sufficient Use intensity. See, eg, U.K. Patent Publication 2,241,373 and USP 4,186,233. Without such products, the user's abili...

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
Patent Type & Authority Applications(China)
IPC IPC(8): A47K7/00A61F5/44A61F13/00A61F13/15A61F13/49A61F13/551C11D1/10C11D1/22C11D1/37C11D3/02C11D3/37C11D17/04D04H1/587D04H1/64D06M15/33D06M15/356
CPCC11D1/10C11D17/049C11D3/3769C11D3/3761C11D1/37C11D3/373C11D3/046C11D3/3753C11D1/22D04H1/587D04H1/64
Inventor 张义华佩吉·A·戴尔门福雷德里克·J·朗帕夫尼特·S·穆米克威廉·S·蓬普隆富兰克林·M·C·陈戴卫得·M·杰克逊埃里克·D·约翰逊杰夫瑞·D·林塞利吉亚·A·瑞沃拉沃沙·K·舍金·G·希克沃尔特·T·舒尔茨肯尼思·Y·王戴维·A·索伦斯
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