Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1991-08-01
1993-04-20
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
264257, 264258, 26433119, 425542, 428225, 428251, 428284, 428285, 428296, 428373, 428408, 4284231, D03D 300
Patent
active
052041700
ABSTRACT:
A high density structural reaction injection molded (SRIM) composite having a fabric comprised of nonwoven spunbonded fibers made of a polyester core sheathed in a polyamide skin, is embedded in a polyurethane matrix, providing a part having a blister free surface upon baking in a paint oven. A baked part having a near Class A or Class A surface finish can be attained by adding a show surface veil made of a soft nonwoven polyester fiber mat to the polyurethane matrix over the nonwoven spun bonded fabric. These parts have structural applications which require high strength and good surface finishes, such as in automotive exterior panels.
REFERENCES:
patent: 4107100 (1978-08-01), Peterhans et al.
patent: 4243755 (1981-01-01), Marx et al.
patent: 4596835 (1986-06-01), Werner et al.
patent: 4816329 (1989-03-01), Arnaud
Kuyzin, G. S., et al. "Non-Glass Reinforcement of Low-Density SRIM-For Automotive Interior Trim Parts", 32nd Annual Polyurethane Technical/Marketing Conference, Oct. 1-4, 1989, pp. 280-287.
Wilkinson, et al., "Structual Composites by Reaction Molding", 31st International SAMPE Symposium, Apr. 7-10, 1986, pp. 1064-1069.
Gonzales-Romero, et al., "Process Parometers Estimation for Structural Reaction Injection Molding and Resin Transfer Molding", Polymer Engineering and Science, vol. 30, Mid-Feb., 1990, pp. 142-146.
Reitz, J. A., et al., "New Directions in RIM Structural Composites", Proc. SPI Annual Technical/Marketing Conference, 31st Polyurethanes, 1988, pp. 75-79.
Kia, Hamid, "A Technique for Predicting Molding Conditions which Result in Class A Surfaces for Glass Fiber Reinforced Polymers", Journal of Composites Material, vol. 22(9), Sep., 1988, pp. 794-811.
BASF Corporation
Bell James J.
Carmen Dennis V.
LandOfFree
High density structural reaction injection molded composite cont does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High density structural reaction injection molded composite cont, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High density structural reaction injection molded composite cont will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1525005