Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1999-03-09
1999-12-28
Derrington, James
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524388, 524503, 525 57, 264645, 264669, 264670, 264109, 2643282, 419 36, 419 37, C08L 2904
Patent
active
06008281&
ABSTRACT:
A powder injection molding composition or feedstock is made of 70% or more by weight of a powdered metal or ceramic and 30% or less by weight of a binder system. The binder system contains a sufficient amount of polypropylene or polyethylene to hold the so-called brown preform of the molded metal or ceramic powder together for the sintering step of the injection molding process and a sufficient amount of partially hydrolyzed cold water soluble polyvinyl alcohol water and plasticizer to facilitate molding of the composition into the so- called green preform of the article to be manufactured. The debinding step of the injection molding process for transforming the green preform into the brown preform consists simply of immersing the green preform in water at ambient temperature to dissolve the polyvinyl alcohol. The binder system is nonhazardous, safe, harmless and fully degradable.
REFERENCES:
patent: 4057522 (1977-11-01), Naruse et al.
patent: 4152317 (1979-05-01), Agouri et al.
patent: 4283360 (1981-08-01), Henmi
patent: 4681629 (1987-07-01), Reinshagan
patent: 4704242 (1987-11-01), Bandyofadhyay et al.
patent: 4765950 (1988-08-01), Johnson
patent: 4867943 (1989-09-01), Kiyota
patent: 4886639 (1989-12-01), Andrees et al.
patent: 4891399 (1990-01-01), Ohkawa et al.
patent: 4898902 (1990-02-01), Nagai et al.
patent: 4923652 (1990-05-01), Murakawa
patent: 4996022 (1991-02-01), Shindo et al.
patent: 5002728 (1991-03-01), Achikita et al.
patent: 5028367 (1991-07-01), Wei et al.
patent: 5045276 (1991-09-01), Kijima
patent: 5055128 (1991-10-01), Kiyota et al.
patent: 5059387 (1991-10-01), Brasel
patent: 5059388 (1991-10-01), Kihara et al.
patent: 5064463 (1991-11-01), Ciomek
patent: 5095048 (1992-03-01), Takahashi et al.
patent: 5098469 (1992-03-01), Rezhets
patent: 5135977 (1992-08-01), Achikita et al.
patent: 5266264 (1993-11-01), Miura et al.
patent: 5332537 (1994-07-01), Hens et al.
patent: 5338508 (1994-08-01), Nitta et al.
patent: 5342561 (1994-08-01), Sterzel et al.
patent: 5362791 (1994-11-01), Ebenhoech et al.
patent: 5366669 (1994-11-01), Quadir et al.
patent: 5366679 (1994-11-01), Streicher et al.
patent: 5409650 (1995-04-01), Holme
patent: 5421853 (1995-06-01), Chen et al.
patent: 5439964 (1995-08-01), Ohst et al.
patent: 5470401 (1995-11-01), McCallum et al.
patent: 5531958 (1996-07-01), Krueger
patent: 5604919 (1997-02-01), Sterzel
patent: 5627258 (1997-05-01), Takayama et al.
patent: 5641920 (1997-06-01), Hens et al.
patent: 5665289 (1997-09-01), Chung et al.
"Powder Injection Molding '96: Birth of an Industry", Carl Kirkland, Injection Molding Magazine, Jun. 1996, pp. 32-34, 36.
"What Is Metal Injection Molding?", Phillips-Origen Powder Metal Molding, date and author unknown, 2 pages of text and 2 sheets of illustrations.
Schildknecht Calvin E., Vinyl and Related Polymers John Wiley & Sons, Inc., New York, 1952, pp. 351-352.
Petcavich Robert J.
Yang Xiaoming
Derrington James
Planet Polymer Technologies, Inc.
LandOfFree
Powder and binder systems for use in metal and ceramic powder in does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Powder and binder systems for use in metal and ceramic powder in, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Powder and binder systems for use in metal and ceramic powder in will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2382937