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US 9,185,941 B2Granted
Synthetic insulation with microporous membrane
AssigneePrimaloft, Inc.
InventorsVanessa Mason, Joseph Rumiesz
Life of this patent
Estimating the term…
Abstract
An insulation package and method of formation including a functional layer, a breathable water repellant insulating layer, and a highly breathable microporous membrane layer having a network of pores. The functional fabric, the highly breathable insulating layer and the microporous membrane layer are laminated to one another to form a waterproof breathable insulated fabric.
Claims22
An insulation package comprising:
- at least one functional fabric layer on an exterior side of the insulation package;
- a breathable water repellant insulating layer on an interior side of the insulation package;
- and
- a breathable, air permeable polytetrafluoroethylene microporous membrane layer having a network of pores, disposed between said at least one functional fabric layer and said breathable water repellant insulating layer, wherein the size of the pores is between about 1 and about 8 μm;
- wherein the functional fabric, microporous membrane layer and the insulating layer, are laminated to one another throughout the entire insulation package to form a waterproof breathable insulated fabric;
- and
- wherein the insulation package has a Water Vapor Transmission Rate (WVTR) of about 3521 g/m2/24 hrs.
4 more elements
An insulation package comprising:
- at least one functional fabric layer on an exterior side of the insulation package;
- a breathable water repellant insulating layer on an interior side of the insulation package;
- and
- a breathable, air permeable, non-waterproof polytetrafluoroethylene microporous membrane layer having a network of pores, disposed between said at least one functional fabric layer and said breathable water repellant insulating layer;
- wherein the functional fabric, microporous membrane layer and the insulating layer, are laminated to one another throughout the entire insulation package to form a waterproof breathable insulated fabric;
- and
- wherein the insulation package has a Water Vapor Transmission Rate (WVTR) of about 3521 g/m2/24 hrs.
4 more elements
Dependencies are inferred from the claim text.