Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hydrophilic siloxane copolymer and method for manufacturing the same

A siloxane copolymer, hydrophilic technology, used in textiles and papermaking, fiber treatment, fiber type, etc., can solve the problems of limited direct dyeability, washability, no self-dispersion, etc.

Inactive Publication Date: 2007-09-26
WACKER CHEM GMBH
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compounds disclosed therein are only obtainable through complex multi-step syntheses and have only acceptable direct dyeability and only limited wash fastness
But the previously cited compounds especially do not have the property of self-dispersing

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
  • Hydrophilic siloxane copolymer and method for manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0176] 500 g of α,ω-dihydropolydiorganosiloxane having 0.055% by weight of silicon-bonded hydrogen and a water content of 50 wt. Ether mix:

[0177] h 2 C=CH-CH 2 -(OCH 2 CH 2 )10.7-OH,

[0178] and heated to 100°C. Then, 0.8 g of hexachloroplatinic acid solution (0.48%, based on elemental platinum) were metered in, at which point the temperature of the reaction mixture rose to 120° C. and a clear product formed. At a temperature of 100 to 110° C., the silicon-bonded hydrogen is completely converted after 1 hour. The polyether-polysiloxane intermediate had a viscosity of about 820 mm2 / sec at 25°C.

[0179] Add 9.81 grams of N, N-dimethylethanolamine and 41.6 grams of 1,6-hexamethylene diisocyanate successively (in the intermediate product (4) and in N, N-dimethylethanolamine (6), each mole of isocyanate reacts groups have a total of 0.999 moles of isocyanate groups), and stirred at 100° C. for 1 hour. During this process, the viscosity increased significantly. The in...

Embodiment 2

[0186] 500 g of an α,ω-dihydropolydiorganosiloxane having 0.055% by weight of silicon-bonded hydrogen and a water content of 50 ppm by weight were mixed with 807.7 g of an allyl alcohol ethoxylate having the general formula / Propoxide Mix:

[0187] h 2 C=CH-CH 2 -(OCH 2 CH 2 ) a [OCH 2 CH(CH 3 )] b -OH,

[0188] Wherein the ratio of a:b=1.0, the water content is 978 weight ppm and the iodine value is 12.1 (the iodine value represents the gram number of consumed iodine per 100 grams of the material to be tested with the aliphatic multi-bond addition), and heated to 100 ℃. Then, 1.63 g of hexachloroplatinic acid solution (0.48%, based on elemental platinum) were metered in, at which point the temperature of the reaction mixture rose to 120° C. and a clear product formed. At a temperature of 100 to 110° C., the silicon-bonded hydrogen was completely converted after 2 hours. The polyether-polysiloxane intermediate has a viscosity of about 1120 mm2 / sec at 25°C.

[0189...

Embodiment 3

[0193] 2.94 g of N,N-bis(dimethyl-3-aminopropyl) were successively metered into 100 g of the polyether-polysiloxane intermediate product from Example 1 (OH content: ca. ) amine, 5.92 g of 1,6-hexamethylene diisocyanate and 1 drop of di-n-butyltin dilaurate and stirred at 100° C. for a further 1 hour. During this process, the viscosity increased significantly. The intermediate product thus obtained contained about 28.84 meq / 100 g of protonatable amino groups.

[0194] It was then cooled to 80°C, 23 g of diethylene glycol monobutyl ether and 5.83 g of methyl p-toluenesulfonate were added and stirred at this temperature for a further 1 hour to give a clear light brown oil which had no protonatable amino group.

[0195] Mix 40 grams of high viscosity oil with 60 grams of water at 50°C. An emulsion with a carbamate content of 0.205 meq / g (emulsion 3) was formed under gentle stirring.

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
viscosityaaaaaaaaaa
molecular weightaaaaaaaaaa
Login to View More

Abstract

A hydrophilic siloxane copolymer is prepared by following steps: (a) in the first step, reacting organopolysiloxane (1) having at least one Si-bonded hydrogen of each molecule with linear oligomeric or polymeric compound (2) having a formula (I); (b) in the second step, reacting an intermediate product (4) having H-A<1>- group with an organic compound (5) having at least two isocyanate groups in each molecule, wherein, other organic compounds (6) having reactivity for the isocyanate groups and containing at least one tertiary amine group are in being, the reaction is carried out; (c) in the third step, quaternizing partially or completely the intermediate product (7) having amino groups generated by the step (b) by alkylating agent (8); having the condition that the water content of compounds (1) and (2) for producing hydrophilic siloxane copolymer is lower than 2000 weight parts per million based on the total weight of compounds (1) and (2).

Description

technical field [0001] The present invention relates to hydrophilic siloxane copolymers and methods for their manufacture. Background technique [0002] US Pat. No. 5,001,210 describes a process for the production of polyurethanes in which, after reaction with cyclic carbonates, diisocyanates or polyisocyanates are used to convert aminofunctional siloxane chain end functions into the desired products. The polyethers used are in the form of diaminopolyethers, which are more expensive than polyether diols and polyether monols. [0003] EP-A 1 178 069 describes the reaction of alkenyl polyethers with diisocyanates and the addition of silanes having hydrolysis-sensitive groups to produce polyetherurethane intermediates. Siloxane chain polymers cannot be prepared in this way. [0004] Chemical Abstracts 136:38808 discloses branched polyether siloxanes. Hydrogen siloxane reacts with divinyl siloxane and allyl polyether simultaneously. Excess polyether in the product mixture re...

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 Patents(China)
IPC IPC(8): C08G77/452C08L83/12C08G18/08C08G18/28C08G18/32C08G18/61C08G18/83C08G77/26C08G77/458C08G77/46D06M15/643D06M15/647D06M15/653
CPCC08G18/61C08G77/458C08G77/46D06M15/647D06M15/6436C08G18/2875C08G18/2865D06M2200/00
Inventor 克里斯蒂安·奥克斯克里斯蒂安·赫尔齐希
Owner WACKER CHEM GMBH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com