The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 1996
Filed:
May. 23, 1995
Takeshi Takahashi, Kawasaki, JP;
Shigenori Terazono, Kawasaki, JP;
Ryosuke Kamei, Kawasaki, JP;
Eiichiro Takiyama, Kamakura, JP;
Showa Highpoymer Co., Ltd., Tokyo, JP;
Abstract
Nonwoven fabrics made of an aliphatic polyester having a melt viscosity of 5.0.times.10.sup.2 -2.times.10.sup.4 poises at a temperature of 190.degree. C. at a shear rate of 100 sec.sup.-1 and a melting point of 70.degree.-190.degree. C. The nonwoven fabric has biodegradability when it is buried in the ground and it is also excellent in tensile strength and tear propagation strength. Thus, the nonwoven fabric of the present invention is useful for sanitary materials, medical materials, packaging materials, agricultural covering materials, filters, oil absorption materials, materials for a daily life, padding cloth materials for clothes, cell separators, drain sheets for constructions and the like.