Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1986-04-17
1988-07-05
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
249 57, 249 85, 249 95, 249115, 264255, 264275, 2643286, 264338, 425116, 425129R, 4251291, 425543, B29C 4514, C08G 1808
Patent
active
047553391
ABSTRACT:
An improved window gasket assembly and the apparatus and associated method for reaction injection molding such as assemblies, as well as other molded articles, are disclosed. The gasket is preferably integrally molded from an elastomeric material such as urethane onto a substantially transparent window panel. The gasket and window assembly can then be mounted and secured directly to vehicle body panel opening, for example, with adhesives, thereby eliminating the need for discrete mechanical fasteners. In a preferred embodiment of the invention, an improved aftermixer and gating apparatus includes a mixing body in which a flowable multi-constituent molding material is separated into a number of generally serpentine mixing passageways and reunited in a common mixing cavity before being conveyed through a fan-gate passageway to the mold cavity. Adjustment means is provided for selectively altering the size of the mixing cavity and its inlet openings in order to selectively alter the back-pressure exerted on the material flowing therethrough, thereby enhancing the mixing of the molding material constituents. An improved mold apparatus is also preferably employed and includes elongated elastomeric members along the preferable edge of the mold cavity for supportingly engaging the mold members and substantially minimizing or preventing flashing of the molding material therefrom.
REFERENCES:
patent: 1637697 (1927-08-01), Jacobsen
patent: 1911578 (1933-05-01), Masters
patent: 2025198 (1935-12-01), Conrow
patent: 2258724 (1941-10-01), Wagner et al.
patent: 2266235 (1941-12-01), Mollard
patent: 2342758 (1944-02-01), Saunders et al.
patent: 2576392 (1951-11-01), Downes
patent: 2645827 (1953-07-01), Koll
patent: 2701041 (1955-02-01), Toth
patent: 2718664 (1955-09-01), Schweitzer
patent: 2966435 (1960-12-01), Kassinger
patent: 2974407 (1961-03-01), Barr
patent: 3119704 (1964-01-01), Harrell et al.
patent: 3166795 (1965-01-01), Joffe
patent: 3263014 (1966-07-01), Deisenroth
patent: 3381340 (1968-05-01), Chapin, Jr.
patent: 3387075 (1968-06-01), Wilcox
patent: 3430333 (1969-03-01), Hogden
patent: 3440121 (1969-04-01), Shockey
patent: 3450022 (1969-06-01), Engel
patent: 3459407 (1969-08-01), Hazlehurst et al.
patent: 3470912 (1969-10-01), Bydal
patent: 3523994 (1970-08-01), Shockey
patent: 3659896 (1972-05-01), Smith et al.
patent: 3671370 (1972-06-01), Littell, Jr.
patent: 3719222 (1973-03-01), Harding et al.
patent: 3744201 (1973-07-01), Dochnahl
patent: 3759004 (1973-09-01), Kent
patent: 3776591 (1973-12-01), Krueger
patent: 3843982 (1974-10-01), Lane
patent: 3851432 (1974-12-01), Griffin
patent: 3884007 (1975-05-01), Laverne
patent: 3913892 (1975-10-01), Ersfeld et al.
patent: 3917792 (1975-11-01), Conacher, Jr.
patent: 3924989 (1975-12-01), Althausen et al.
patent: 3941355 (1976-03-01), Simpson
patent: 3952991 (1976-04-01), Schneider
patent: 3968612 (1976-07-01), Endo et al.
patent: 3984510 (1976-10-01), Chandra et al.
patent: 4007536 (1977-02-01), Soderberg
patent: 4072340 (1978-02-01), Morgan
patent: 4072673 (1978-02-01), Lammers
patent: 4097928 (1978-06-01), Fries
patent: 4135180 (1979-01-01), White
patent: 4139234 (1979-02-01), Morgan
patent: 4155969 (1979-05-01), Hendry
patent: 4190711 (1980-02-01), Zurahala et al.
patent: 4255367 (1981-03-01), Wallace et al.
patent: 4265965 (1981-05-01), Chancler
patent: 4284673 (1981-08-01), Ockels
patent: 4284679 (1981-08-01), Blad et al.
patent: 4303728 (1981-12-01), Houdek et al.
patent: 4336009 (1982-06-01), Wolf
patent: 4340311 (1982-07-01), Crandal
patent: 4361407 (1982-11-01), Pellegrini
patent: 4363191 (1982-12-01), Morgan
patent: 4364214 (1982-12-01), Morgan
patent: 4364595 (1982-12-01), Morgan et al.
patent: 4409758 (1983-10-01), Dickerson et al.
patent: 4470785 (1984-09-01), Koorevaar
patent: 4561625 (1985-12-01), Weaver
patent: 4584155 (1986-04-01), Zanella
patent: 4648832 (1987-03-01), Reilly et al.
patent: 4688752 (1987-08-01), Barteck et al.
Plastics Engineering, "The Story Behind Liquid Injection Molding of Polyurethanes," by French Conway, Assc. Edt., Jan 1975, pp. 25-29.
Wirtz, H. "Progress in Rim Technology for Automobile Components" in Plastics and Rubbers Processing, Dec. 1976, pp. 167-170.
Emmerich, Anthony, "Liquid Injection Molding: Where It Stands Today" in Plastics Technology, Apr. 1980, pp. 91-95.
Becker, Walter E., Edt., Reaction Injection Molding. New York, Van Nostrand Reinhold, c1979, pp. 59-60, 78-86, 215-235.
Mondur PF--Modified Polyisocyanate Product Code: C-261--Mobay Chemical Corporation.
Mondur CD--Polyisocyante Product Code: C-905--Mobay Chemical Corp.
Technical Information--Isonate 143L--The Upjohn Company.
Technical Information--Isonate 181--The Upjohn Company.
Technical Information--Isonate 191--The Upjohn Company.
Technical Information--Isonate 240--The Upjohn Company.
Technical Bulletin--PRC 789 "Mold Release Agent for Rim/Microcellular Urethanes--Low Mold Temperatures"--Park Chemical Company.
Formula Selection--Frekote: The Unconditional Release--Frekote, Inc.
Release Agents from Contour
Bulletin 395--Witco Formrez UL-28, "High-Performance Organotin Catalyst" Witco Chemical Organics Division--Jan. 1980.
"RIM Emerges as a Major Process"--Modern Plastics, Aug. 1979.
Bayer Polyurethanes, Bayer Chemical Co., W. Germany, circa. 1979 (Ed. #1.79E35-7109/847991) pp. 130-139.
Chemical Coatings--Polane T. Green (Modified) SA8060-G64--Sherwin Williams Company--May 1981.
Money Making Ideas--Modules slashes cost, weight of automobile quarter window--72/Design News/11-80 (2 Sheets).
Urethane Chemicals Bulletin--Thanol SF-6503 Polyol--Texaco Chemical Company.
Material Safety Data Sheet--DABCO 33-LV--Air Products and Chemicals, Inc.--1980.
"Glass Bonding with Polyurethane"--ATZ Automobiltechnische Zeitschrift 85 (1983)--p. 678.
Reilly Albert F.
Sanok John L.
Anderson Philip
Sheller-Globe Corporation
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