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

Polymeric composition for cellulosic materials binding and modification

A composition and polymer technology, applied in the direction of polymer impregnation, thin material treatment, wood treatment, etc.

Inactive Publication Date: 2013-07-17
格林百奥生态材料科技(上海)有限公司
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyester resins are not currently widely used as wood adhesives or wood raw material modification resins

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
  • Polymeric composition for cellulosic materials binding and modification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 5.0 kg of butane tetracarboxylic acid, 20.0 kg of citric acid and 15.6 kg of maltodextrin were mixed with 80.0 kg of water until the solution became clear and a mixed composition was formed. Some poplar solid wood planks were placed in an autoclave, which was then evacuated to about 80% vacuum. The mixed composition was then transferred to an autoclave. When the autoclave was filled with the mixed composition liquid, the system was pressurized and maintained for about 3 hours. The impregnated wood boards were dried in an oven heated to 100°C for about 24 hours to allow the mixed composition to react to form a cross-linked polymer. The resulting treated wood had a specific gravity of about 0.6 g / ml compared to a corresponding untreated wood of about 0.32 g / ml. The treated wood exhibits enhanced mechanical properties.

Embodiment 2

[0032] 5kg of butane tetracarboxylic acid, 20kg of citric acid, 1kg of itaconic acid, 18kg of maltodextrin and 5kg of 20% by weight of polyvinyl alcohol 5000 in water, and 0.5kg of zinc acetate, 0.4kg of Boric acid and 80 kg of water were mixed to form a mixed composition. Some solid radiata pine planks were placed in an autoclave, which was then evacuated to a vacuum of about 80%. The mixed composition was then transferred to an autoclave. When the autoclave was filled with the mixed composition liquid, the system was pressurized and maintained for 3 hours. The impregnated wood boards were dried in an oven and heated to about 100°C for about 24 hours. The resulting treated wood had a specific gravity of about 0.7 g / ml compared to a corresponding untreated wood of about 0.45 g / ml. The Janka hardness of the treated wood reaches about 1600 pound-force.

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

A polymer composition suitable for wood treatment or bonding comprising the reaction product of at least one polyol and at least one crosslinking agent. Each molecule of the crosslinking agent contains at least 2 carboxylic acid groups. The invention also discloses a wood product comprising a wood substrate and a mixing composition, and a wood treatment step.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application 60 / 947,649, filed July 2, 2007, which is hereby incorporated by reference into this application. technical field [0003] The fields to which the present disclosure pertains include wood bonding and wood treatment. Background technique [0004] The polymer compositions have been used for the treatment of wood raw materials and for the gluing of wood raw materials. Several wood treatment compositions and processes are disclosed in US Patent Nos. 5,770.319 and 5,162,394. [0005] Typically, polyester resins are synthesized by the reaction of a monomer containing about 2 hydroxyl groups with another monomer containing about 2 carboxylic acid groups. To produce high molecular weight resins with practical mechanical strength, the two monomers need to be completely free of impurities that could cause side reactions, and the molar ratio of hydroxyl to carboxyli...

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): C09D101/00C09D103/00
CPCB27K3/15B05D3/0493B05D1/18B05D2203/20B27K5/065C08L29/04B27K2200/30Y10T428/31975Y10T428/249954
Inventor 王寅
Owner 格林百奥生态材料科技(上海)有限公司
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