Heat retaining article
AssigneeKanebo, Ltd.
InventorsTakeshi Nishida, Yousuke Yamagami, Toshihide Takeda, Toshio Saito
Life of this patent
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Abstract
The heat retaining article according to the invention comprises at least one inflatable envelope attached on a sheet material. The envelope is made of an air-impermeable sheet which is produced by treating a cloth with at least one synthetic or natural rubber. The heat retaining property of the article can be controlled by adjusting the amount of air filled in the envelope.
Claims17
A heat retaining article comprising at least one inflatable envelope attached to a sheet material, said envelope being made of an air-impermeable sheet consisting of a cloth treated with at least one synthetic or natural rubber, said envelope containing a wadding material consisting of at least two polymers having different melting points, one of said polymers having been melted to partially weld said wadding, thereby substantially preventing said wadding from moving about within said envelope, the heat retaining property of said article being controlled by adjusting the amount of air in said envelope.
A heat retaining article of clothing comprising at least one tubular envelope attached to a sheet material, said envelope being made of an air-impermeable sheet consisting of a cloth treated with at least one synthetic or natural rubber, said envelope containing a wadding material consisting of at least two polymers having different melting points, one of said polymers having been melted to partially weld said wadding, thereby substantially preventing said wadding from moving about within said envelope, the heat retaining property of said article of clothing being controlled by adjusting the amount of air in said envelope.
A heat retaining article of clothing comprising at least one inflatable envelope attached to a sheet material, said envelope being divided into plural chambers which are connected to each other, said envelope being made of an air-impermeable sheet consisting of a cloth treated with at least one synthetic or natural rubber, said envelope containing a wadding material consisting of at least two polymers having different melting points, one of said polymers having been melted to partially weld said wadding, thereby substantially preventing said wadding from moving about within said envelope, the heat retaining property of said article of clothing being controlled by adjusting the amount of air in said envelope.
Dependencies are inferred from the claim text.