Cellulosic Composites Comprising Wood Pulp
a technology of cellulosic composites and wood pulp, which is applied in the field of cellulosic composites, can solve the problems of poor mechanical properties and lower moisture resistance of conventional wpcs compared to mineral and glass filled composites, chemically processed pulp composites are typically more expensive than wpcs and mineral filled composites, and poor mechanical properties and moisture resistance when compared to mineral or glass filled composites
Pending Publication Date: 2019-05-02
WEST FRASER MILLS
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- Application Information
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Benefits of technology
The resulting composites exhibit improved mechanical properties and moisture resistance, making them more cost-effective and suitable for various applications such as automotive, construction, and consumer products.
Problems solved by technology
However, conventional WPCs typically have poorer mechanical properties and lower moisture resistance than to mineral and glass filled composites.
However, composites based on chemically processed pulp are typically more expensive than WPCs and mineral filled composites.
They also have poorer mechanical properties and moisture resistance when compared to mineral or glass filled composites.
Method used
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[0013]Aspects of the present disclosure relate to cellulosic composites based on wood pulps. Some embodiments of these composites are more cost effective, have improved moisture resistance and / or improved mechanical properties when compared to cellulosic composites known in the art, such as composites based on chemically processed pulp.
[0014]Cellulosic composites that contain wood pulp and a polymeric matrix are described. When such pulp is incorporated into a polymeric matrix, it is capable of improving certain attributes of the resulting polymeric composite. In certain embodiments, such composites have exhibited improved mechanical properties and improved moisture resistance.
[0015]Exemplary processes for the preparation of cellulosic composites that have wood pulp incorporated in a polymeric matrix are also described. Exemplary embodiments of these processes involve melt processing pulp with a relatively high moisture content. The moisture content of the pulp prior to melt process...
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Abstract
The present invention discloses cellulosic composites that include mechanical or chemical pulp, and methods for producing such cellulosic composites. Embodiments of such composites may exhibit improved mechanical properties and moisture resistance when compared to composites derived from conventional cellulosic feedstock.
Description
[0001]This application claims the benefit of U.S. Provisional Application No. 62 / 315,731 filed on Mar. 31, 2016, and U.S. Provisional Application No. 62 / 315,722 filed on Mar. 31, 2016, and U.S. Provisional Application No. 62 / 315,737 filed on Mar. 31, 2016, and U.S. Provisional Application No. 62 / 315,744 filed on Mar. 31, 2016, the contents of each of which are incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates to cellulosic composites that include mechanical or chemical wood pulp, and methods for producing such cellulosic composites. Embodiments of such composites may exhibit improved mechanical properties and moisture resistance when compared to composites derived from conventional cellulosic feedstock.BACKGROUND ART[0003]There is increasing demand for cost effective composite materials derived from renewable feedstock. Cellulosic materials have been previously used as fillers in thermoplastics. For example, wood plastic composites (WPCs) have found...
Claims
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IPC IPC(8): C08L1/02C08L23/06C08L23/12C08J3/22B29B9/10B29C43/00B29C45/00B29C48/00B29C70/58
CPCC08L1/02C08L23/06C08L23/12C08J3/226B29B9/10B29C43/003B29C45/0001B29C48/022B29C70/58C08L2310/00C08L2205/16C08L2207/062C08L2201/08B29K2001/00B29K2105/16C08L101/00C08L23/0815C08L97/02C08K3/34C08K3/40C08L2207/064B27N3/002C08K3/04C08L61/06C08L97/005B29K2101/12B29K2995/0093C08J2323/06C08J2497/00
Inventor MACLEAN, BRIANPEACE, EDWINCERNOHOUS, JEFFREY JACOBELLIOTT, DEAN JUSTIN
Owner WEST FRASER MILLS