Method of making a finished product

Details Method of making a finished product Method of making a finished product

2007-01-23

2007-01-23

Niland, Patrick D. (Department: 1714)

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...

C264S331210, C264S331130, C264S500000, C264S519000, C264S531000, C264S548000, C428S365000, C428S402000, C428S407000, C428S430000, C428S431000, C524S425000, C524S427000, C524S445000, C524S448000, C524S449000, C524S451000, C524S492000, C524S493000, C524S494000

Reexamination Certificate

active

10497796

ABSTRACT:
A method of making a finished product includes the steps of providing a feedstock comprising a polymer component comprising 5 to 100 parts by weight of a polymer selected from the group consisting of polyethylene in particulate form, polyvinyl chloride in particulate form, and a mixture of polyethylene and polyvinyl chloride both in particulate form; 0 to 95 parts by weight of polystyrene in particulate form; an extender, and optionally reinforcing fibres or particles; mixing the feedstock with a thermosetting resin selected from an unsaturated polyester resin in liquid form and a catalyst for the polyester resin and an epoxy resin in liquid form and a catalyst for the epoxy resin; and subjecting the product to suitable conditions of temperature and pressure to cause the polyethylene and/or the polyvinyl chloride and the polystyrene, if present, to melt and the thermosetting resin to set to form the finished product, e.g a shutter board.

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