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US 2008/0172981 A1Published application
Non-organic composite lumber
AssigneeCrawford Industries, Inc.
InventorDonald Iverson
Life of this patent
Estimating the term…
Abstract
A non-organic composite lumber including primarily plastic and minerals for use as decking among many applications.
Claims23
A composite lumber material comprising:
- at least one plastic in an amount by weight less than 90%;
- and
- at least one mineral in an amount by weight in the range of 40-50%,
- with the proviso that the composite lumber material does not include organic components.
1 more element
(canceled)
(canceled)
A composite lumber material comprising:
- at least one plastic in an amount by weight in the range of 50-60%;
- and
- at least one mineral in an amount by weight in the range of 40-50%,
- with the proviso that the composite lumber material does not include organic components.
1 more element
(canceled)
A composite lumber material comprising:
- HDPE in an amount by weight in the range of 50-60%;
- and
- at least one mineral in an amount by weight in the range of 40-50%, said mineral including at least one of talc, calcium carbonate and wollastonite,
- with the proviso that the composite lumber material does not include organic components.
1 more element
(canceled)
A composite lumber material comprising:
- HDPE in an amount by weight in the range of 50-60%;
- at least one mineral in an amount by weight in the range of 40-50%;
- a coupling agent;
- a blowing agent;
- and
- a pigments,
- with the proviso that the composite lumber material does not include organic components.
4 more elements
Dependencies are inferred from the claim text.