Rigid polymeric modular flooring plank with CPVC and method of making same
AssigneeMannington Mills, Inc.
InventorsZachary Hoffman, Brian Kuritz
Life of this patent
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Abstract
A rigid polymeric modular flooring plank that contains chlorinated polyvinyl chloride (CPVC) in the core or base layer. The rigid polymeric modular flooring plank has at least a polymeric core or base layer, a decorative layer, and a wear layer located above the decorative layer. The CPVC can offset the negative effects from any plasticizer present in the core layer, and thus permits the core layer to include plasticized material such as from recycled or reclaimed sources including rework and scrap materials. Methods of making the planks are further described. A method to control dimensional stability of a polymeric flooring plank is further described.
Claims13
A rigid polymeric modular flooring plank comprising
- a) a core layer having a top surface and a bottom surface,
- b) an optional intermediate layer having a top surface and bottom surface and laminated to said top surface of said core layer,
- c) a decorative layer having a top surface and a bottom surface and laminated to said top surface of said intermediate layer if present or to said top surface of said core layer, and
- d) a wear layer laminated to said top surface of said decorative layer,
- wherein said core layer comprises at least one plasticized rework/scrap material comprising recycled or reclaimed plasticizer and at least one polyvinyl chloride (PVC) that comprises a chlorinated polyvinyl chloride (CPVC), the plasticized rework/scrap material (RW) and the CPVC are present in an amount so as to have a CPVC/RW weight ratio of at least 0.2, the CPVC is in an amount of from 25 wt % to 40 wt % based on total weight of the core layer, said at least one PVC further comprises at least one PVC that is not chlorinated and present in an amount of from 0.1 wt % to 20 wt % based on total weight of the core layer, and said rigid polymeric modular flooring plank or said core layer is ASTM F3261 compliant.
Dependencies are inferred from the claim text.