Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2008-07-22
2008-07-22
Eashoo, Mark (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S009000
Reexamination Certificate
active
07402618
ABSTRACT:
The present invention relates to a biodegradable composition for the preparation of table-ware, mulching film and package, which comprises: 2-6% by weight of starch; 35-45% by weight of plant powders; 20-30% by weight of calcium carbonate; 2-7% by weight of sorbitol; 7-13% by weight of polypropylene; 2-5% by weight of polyethylene; 2-6% by weight of coupling agent; 1-2% by weight of defoamer; 2-5% by weight of stearic acid; 2-6% by weight of stearate; 3-6% by weight of glycerine or epoxidized soybean oil; and 60-100 ppm photosensitizer. The present invention also relates to a method for preparing the composition, which comprises: treating a plant waste with a diluent acid, drying and pulverizing, then mixing it with starch, polypropylene, and polyethylene, sorbitol, defoamer, coupling agent, stearic acid, stearate, glycerine and photosensitizer homogeneously; and blending the mixture obtained in a double-screw extruder at a temperature of 160-180° C. to obtain the composition of the present invention.
REFERENCES:
patent: 3921333 (1975-11-01), Clendinning et al.
patent: 4287103 (1981-09-01), Green et al.
patent: 4316745 (1982-02-01), Blount
patent: 4337181 (1982-06-01), Otey et al.
patent: 4480061 (1984-10-01), Coughlin et al.
patent: 4483950 (1984-11-01), Fanta et al.
patent: 4983651 (1991-01-01), Griffin
patent: 5026745 (1991-06-01), Weil
patent: 5026746 (1991-06-01), Floyd et al.
patent: 5095054 (1992-03-01), Lay et al.
patent: 5115000 (1992-05-01), Jane et al.
patent: 5118725 (1992-06-01), Suominen
patent: 5587412 (1996-12-01), Borchers et al.
patent: 5681873 (1997-10-01), Norton et al.
patent: 5703160 (1997-12-01), Dehennau et al.
patent: 5719203 (1998-02-01), Thobor
patent: 5739244 (1998-04-01), Fisk
patent: 5773495 (1998-06-01), Haschke et al.
patent: 5821286 (1998-10-01), Xu et al.
patent: 5854304 (1998-12-01), Garcia et al.
patent: 5874486 (1999-02-01), Bastioli et al.
patent: 5993530 (1999-11-01), Tanaka et al.
patent: 6051359 (2000-04-01), Ohkawa et al.
patent: 6069196 (2000-05-01), Akao et al.
patent: 6099892 (2000-08-01), Masden et al.
patent: 6117925 (2000-09-01), Tomka
patent: 6231970 (2001-05-01), Andersen et al.
patent: 6235815 (2001-05-01), Loercks et al.
patent: 6235816 (2001-05-01), Lorcks et al.
patent: 6274652 (2001-08-01), Uryu et al.
patent: 6632862 (2003-10-01), Willett et al.
patent: 6756422 (2004-06-01), Mochizuki et al.
patent: 6756428 (2004-06-01), Denesuk
patent: 6844380 (2005-01-01), Favis et al.
patent: 6958369 (2005-10-01), Berger et al.
patent: 7071249 (2006-07-01), Ho et al.
patent: 7094817 (2006-08-01), Halley et al.
patent: 2002/0188041 (2002-12-01), Bond et al.
patent: 2003/0092793 (2003-05-01), Liu et al.
patent: 2003/0216492 (2003-11-01), Bowden et al.
patent: 2004/0082678 (2004-04-01), Xu
patent: 2004/0122135 (2004-06-01), Halley et al.
Eashoo Mark
Heincer Liam J
LandOfFree
Biodegradable composition for the preparation of tableware,... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Biodegradable composition for the preparation of tableware,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biodegradable composition for the preparation of tableware,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2815395