Polymer wood composite

Details Polymer wood composite Polymer wood composite

1999-05-04

2000-01-18

Weisberger, Richard

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428359, 428361, 428378, 428393, 428332, 428407, 428402, 428507, 428510, 428511, 428514, 523222, 521 13, 521 14, 521551, B32B 516

Patent

active

060156120

ABSTRACT:
The invention relates to a composition comprising a polymer and wood fiber composite that can be used in the form of a linear extrudate or thermoplastic pellet to manufacture structural members. The polymer and wood fiber composite structural members can be manufactured in an extrusion process or an injection molding process. The linear extrudate or pellet can have a cross-section of any arbitrary shape, or can be a regular geometric. The pellet can have a cross-section shape having a volume of at least about 12 mm.sup.3. Preferably the pellet is a right cylindrical pellet having a minimum radius of about 1.5 mm and a minimum length of 1 mm weighing at least 14 mg. The invention also relates to an environmentally sensitive recycle of waste streams. The polymer and wood fiber composite contains an intentional recycle of a waste stream comprising polymer flakes or particles or wood fiber. The waste stream can comprises, in addition to polymer such as polyvinyl chloride or wood fiber, adhesive, paint, preservative, or other chemical stream common in the wood-window or door manufacturing process, or mixtures thereof. The initial mixing step before extrusion of the composite material insures substantial mixing and melt contact between molten polymer and wood fiber. The extruded pellet comprises a consistent proportion of polymer, wood fiber and water. During the extrusion, water is removed intentionally to dry the material to a maximum water content of less than about 10 wt-% based on the pellet weight. To make a structural unit, the pellet is introduced into an extruder or injection molding apparatus wherein, under conditions of temperature and pressure, the composite pellet material is shaped into a useful cross-section. Alternatively, the extruded thermoplastic mass, in the form of a elongated linear extrudate without a pelletizing step, can be immediately directed after formation into an extruder or injection molding apparatus.

REFERENCES:
patent: 2188396 (1940-01-01), Semon
patent: 2296729 (1942-03-01), Zanini
patent: 2489373 (1949-11-01), Gilman
patent: 2519442 (1950-08-01), Delorme et al.
patent: 2558378 (1951-06-01), Petry
patent: 2635976 (1953-04-01), Meiler et al.
patent: 2680102 (1954-06-01), Becher
patent: 2789903 (1957-04-01), Lukman et al.
patent: 2935763 (1960-05-01), Newman et al.
patent: 3147518 (1964-09-01), Horgan, Jr.
patent: 3287480 (1966-11-01), Wechsler et al.
patent: 3308218 (1967-03-01), Wiegand et al.
patent: 3309444 (1967-03-01), Schueler
patent: 3349538 (1967-10-01), Crossman
patent: 3432885 (1969-03-01), Zanini
patent: 3492388 (1970-01-01), Inglin-Knosel
patent: 3493527 (1970-02-01), Schueler
patent: 3562373 (1971-02-01), Logrippo
patent: 3645939 (1972-02-01), Gaylord
patent: 3671615 (1972-06-01), Price
patent: 3833325 (1974-09-01), Ramsey
patent: 3844091 (1974-10-01), Vedvik et al.
patent: 3878143 (1975-04-01), Baumann et al.
patent: 3888810 (1975-06-01), Shinomura
patent: 3899559 (1975-08-01), Johnanson et al.
patent: 3904726 (1975-09-01), Jacquelin et al.
patent: 3931384 (1976-01-01), Forquer et al.
patent: 3943079 (1976-03-01), Hamed
patent: 3956541 (1976-05-01), Pringle
patent: 3956555 (1976-05-01), McKean
patent: 3969459 (1976-07-01), Fremont et al.
patent: 4005162 (1977-01-01), Bucking
patent: 4012348 (1977-03-01), Chelland et al.
patent: 4016232 (1977-04-01), Pringle
patent: 4018722 (1977-04-01), Baker
patent: 4033913 (1977-07-01), Sunden
patent: 4045603 (1977-08-01), Smith
patent: 4056591 (1977-11-01), Goettler et al.
patent: 4058580 (1977-11-01), Flanders
patent: 4071479 (1978-01-01), Broyde et al.
patent: 4097648 (1978-06-01), Pringle
patent: 4102106 (1978-07-01), Golder et al.
patent: 4115497 (1978-09-01), Halmo
patent: 4145389 (1979-03-01), Smith
patent: 4168251 (1979-09-01), Schinzel et al.
patent: 4181764 (1980-01-01), Totten
patent: 4187352 (1980-02-01), Klobbie
patent: 4202804 (1980-05-01), Porzel et al.
patent: 4203876 (1980-05-01), Dereppe et al.
patent: 4228116 (1980-10-01), Colombo et al.
patent: 4239679 (1980-12-01), Rolls et al.
patent: 4244903 (1981-01-01), Schnause
patent: 4248743 (1981-02-01), Goettler
patent: 4248820 (1981-02-01), Haataja
patent: 4250222 (1981-02-01), Mavel et al.
patent: 4263184 (1981-04-01), Leo et al.
patent: 4273688 (1981-06-01), Porzel et al.
patent: 4277428 (1981-07-01), Luck et al.
patent: 4281039 (1981-07-01), Miura et al.
patent: 4290988 (1981-09-01), Nopper et al.
patent: 4305901 (1981-12-01), Prince et al.
patent: 4311554 (1982-01-01), Herr
patent: 4311621 (1982-01-01), Nishizawa et al.
patent: 4323625 (1982-04-01), Coran et al.
patent: 4328136 (1982-05-01), Blount
patent: 4376144 (1983-03-01), Goettler
patent: 4382108 (1983-05-01), Carroll et al.
patent: 4393020 (1983-07-01), Li et al.
patent: 4414267 (1983-11-01), Coran et al.
patent: 4420351 (1983-12-01), Lussi et al.
patent: 4426470 (1984-01-01), Wessling et al.
patent: 4440708 (1984-04-01), Haataja et al.
patent: 4454091 (1984-06-01), Chion et al.
patent: 4455709 (1984-06-01), Zanini
patent: 4481701 (1984-11-01), Hewitt
patent: 4491553 (1985-01-01), Yamada et al.
patent: 4503115 (1985-03-01), Hemels et al.
patent: 4505869 (1985-03-01), Nishibori
patent: 4506037 (1985-03-01), Suzuki et al.
patent: 4508595 (1985-04-01), Gasland
patent: 4551294 (1985-11-01), Wottka et al.
patent: 4562218 (1985-12-01), Fornadel et al.
patent: 4594372 (1986-06-01), Natov et al.
patent: 4597928 (1986-07-01), Terentiev et al.
patent: 4610900 (1986-09-01), Nishibori
patent: 4619097 (1986-10-01), Trummer et al.
patent: 4645631 (1987-02-01), Hagenstaller et al.
patent: 4659754 (1987-04-01), Edwards et al.
patent: 4663225 (1987-05-01), Farley et al.
patent: 4686251 (1987-08-01), Ostermann et al.
patent: 4687793 (1987-08-01), Motegi et al.
patent: 4716062 (1987-12-01), Klein
patent: 4734236 (1988-03-01), Davis
patent: 4737532 (1988-04-01), Fujita et al.
patent: 4769109 (1988-09-01), Tellvik et al.
patent: 4769274 (1988-09-01), Tellvik et al.
patent: 4774272 (1988-09-01), Lamphere et al.
patent: 4790966 (1988-12-01), Sandberg et al.
patent: 4791024 (1988-12-01), Clerici et al.
patent: 4818604 (1989-04-01), Tock
patent: 4820763 (1989-04-01), Yang
patent: 4837977 (1989-06-01), Mauro
patent: 4851458 (1989-07-01), Hopperdietzel
patent: 4865788 (1989-09-01), Davis
patent: 4889673 (1989-12-01), Takimoto
patent: 4894192 (1990-01-01), Warych
patent: 4915764 (1990-04-01), Miani
patent: 4927579 (1990-05-01), Moore
patent: 4929409 (1990-05-01), Agren et al.
patent: 4935182 (1990-06-01), Ehner et al.
patent: 4957809 (1990-09-01), Davis
patent: 4960548 (1990-10-01), Ideda et al.
patent: 4968463 (1990-11-01), Levasseur
patent: 4973440 (1990-11-01), Tamura et al.
patent: 4978489 (1990-12-01), Radvan et al.
patent: 4978575 (1990-12-01), Ziess
patent: 4988478 (1991-01-01), Held
patent: 5002713 (1991-03-01), Palardy et al.
patent: 5008310 (1991-04-01), Beshay
patent: 5009586 (1991-04-01), Pallmann
patent: 5020915 (1991-06-01), Julien
patent: 5021490 (1991-06-01), Vyvoda et al.
patent: 5028266 (1991-07-01), Rettenmaier
patent: 5049334 (1991-09-01), Bach
patent: 5057167 (1991-10-01), Gersbeck
patent: 5075057 (1991-12-01), Hoedl
patent: 5075359 (1991-12-01), Castagna et al.
patent: 5078937 (1992-01-01), Eela
patent: 5082605 (1992-01-01), Brooks et al.
patent: 5084135 (1992-01-01), Brooks et al.
patent: 5087400 (1992-02-01), Theuveny
patent: 5088910 (1992-02-01), Goforth et al.
patent: 5093058 (1992-03-01), Harmon et al.
patent: 5096046 (1992-03-01), Goforth et al.
patent: 5096406 (1992-03-01), Brooks et al.
patent: 5100545 (1992-03-01), Brooks
patent: 5120776 (1992-06-01), Raj et al.
patent: 5183837 (1993-02-01), Lepori et al.
patent: 5441801 (1995-08-01), Deaner et al.
patent: 5486553 (1996-01-01), Deaner et al.
patent: 5539027 (1996-07-01), Deaner et al.
patent: 5827607 (1998-10-01), Deaner et al.
"A Complete Guide to Andersen Windows & Patio Doors", 1992 Product Catalog.
"Mechanical Properties of Wood", Revisions by Bendtsen et al., pp. 4-2 through 4-44.
"Byggkatalogen Svensk Byggkatalog 91/92 (Swedish Builders Catalog, 91/92)," 6 pages, with 1-page English translation.
"Trafylld plast enli

Affiliated with

Also associated with

Rating

Polymer wood composite does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymer wood composite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymer wood composite will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-561533