patent wood plastics composites

wood plastic composite material - patents.google.com

the invention relates to a wood plastic composite material comprising the following materials in parts by weight: 100 parts of wood meals, 20-80 parts of waste plastics, 5-50 parts of waste rubbers, 10-60 parts of high-melt index thermoplastic resins, 1-12 parts of surface active agents, 2-8 parts of lubricating agents, 0.1-4 parts of cross-linking agents, 0.1-4 parts of antioxygens and 0.05-1

us patent application for wood-plastic composites

the market for the wood-plastic composite has grown and wpcs now are used in automotive applications, as well as in the building products sector of the economy. a wood-plastic composite is a blended product of wood, or other natural fibers, and a thermoplastic material.

wood-plastic composites: weathering quality issues

overall moisture content of a wood-composite deck board is usually claimed to be less than 2%. however, material at the board ends and 1 to 7 mm below the board surface 'frequently exceeds 25% moisture,' gnatowski notes. that 25% moisture is an open invitation for fungi to attack wood-plastic composites.

wood plastic composite patents and copyrights

wood plastic composite patents . wood plastic composite patents a method of preparing wood and plastic to produce a composite material. the fabrication of a plastic-wood composite wherein awood is prepared by drying and crushing of at least the outer cell layers of the veneer using a heated platen.

us433a1 - wood-plastic composites - google patents

the present invention is an improved wood-plastic composite wpc produced from a mixture comprising, wood particles, plastic, and optionally additives. the wpc of the invention further comprises an active ingredient that acts as a biocide. the active ingredient comprises tbba or a homologue or derivative thereof and is added to the mixture together with the wood particles during and/or before

composites do wood one better : compositesworld

the principal filler in wood composites is wood flour made from recycled sawdust, planer shavings, sanding dust and scraps, purchased by wood recyclers from a variety of industries. the collected scraps are hammermilled to form a very fine powder, classified by the standard sieve mesh size that it can pass through.

wo09b1 - wood bamboo composites - google patents

wo09b1 pct/in2004/000198 in98w wo09b1 wo09 b1 wo09 b1 wo09b1 in98 w in98 w in98w wo09 b1 wo09 b1 wo09b1 authority wo wipo pct prior art keywords bamboo wood construction process amp prior art date application number pct/in2004/000198

new patent design for the wood plastic composite decking

new patent design for the wood plastic composite decking. march 20, 2018. when using the old wpc decking clips for the installation, you need to: 1, prepare a gap between two decking boards 2, put the clips through the side groove from one end of the boards 3, slid the clips to the proper position

wood-plastic composites - gohary, yossef

manufacturing of the wood plastic composites . the wood-plastic composite is comprised of a polypropylene pp homopolymer and wood flour in a weight ratio of about 31-34% pp: 60% wood. a lubricant, such as ebs wax, at a concentration of 6% of the total weight is added to these components.

patent wood plastics composites - aiutiamoliaviverefilago.it

patent wood plastics composites-shanghai seven trust industry co.,ltd patent wo87a1 - wood plastic composites and- google oct 10, 2013disclosed patent epb1 - wood-plastic composites using recycled sep 3, 2014wherein get sample.

the use of wood fibers as reinforcements in composites

wood plastic composites, wood flour, mechanical properties, durability, foaming. 20.1 introduction: characteristics of wood . wood is classified as a lignocellulosic material. it is made up of major constituents cellulose, hemicellulose, and lignin and minor constituents ash and extractives baeza and freer, 2001 .

composites from recycled materials - usda forest service

composites from wastepaper, wood fiber, plastics, and inorganic materials wastepaper. wood. plastics, fly ash, gyp-sum, and other biomass fibers can be reclaimed from industrial and msw streams and used for several kinds of composite products: wood fiber-plastic composites. dry-formed wood fi-ber-based composites, inorganic bond wood

raptor nails and staples polymer composite plastic

polymer composite plastic nails and plastic staples. utility composites, inc. maker of raptor plastic composite nails and staples is a quality driven company that is proud to offer world class products and fastening solutions to a broad spectrum of market and industry segments. our composite fasteners are made in the usa and marketed and sold

wood is good for compounding, sheet and profile : plastics

wood and plastic are best friends these days. composites of wood flour and pp, pe, or pvc are the buzz in the building-products business. dozens of firms are seeking to exploit these materials for manufacturing tough, lightweight window profiles, plastic lumber, and interior auto panels.

ipm news innovative plastics and molding

innovative plastics and molding has issue notification for us patent 7,994,241 on august 9, 2011 - issue notification received from the uspto that patent application 12/321,093 titled wood composite alloy composition having a compatibilizer that improves the ability to process and compress cellulosic fiber has us patent 7,994,241 issue date 8/9

wood plastic and thermoplastic composites - patents.justia.com

cross-reference to related applications. this application claims the benefit under 35 u.s.c. 119 e of u.s. provisional patent application nos. 61/792,272, filed mar. 15, 2013, 61

inventor wood-plastics composites - wpcdeckboard.com

patent wo36a2 - apparatus and method for low-density field of the invention the present invention is directed to an apparatus and method for producing an extruded cellular wood-plastic composite. the present. wood joins plastics for injection molded composites - design - similar to wood joins plastics for injection molded composites