Molded foam

Patent metadata

Field	Value
Publication number	US-11628611-B2
Application number	US-202117336752-A
Country	US
Kind code	B2
Filing date	Jun 2, 2021
Priority date	May 23, 2014
Publication date	Apr 18, 2023
Grant date	Apr 18, 2023

Abstract

The present invention relates to molded foam having no hollow space caused in a plate-shaped portion. The molded foam comprises a tube body and a plate-shaped portion joined to the outer side of the tube body. The expansion ratio of the molded foam is lower than two, and a value of a thickness B/a thickness A as a relationship between the thickness A of the tube body at the periphery of a point joined to the plate-shaped portion and the thickness B of the plate-shaped portion is less than 2.82.

First claim

The invention claimed is:

1. A molded foam tube comprising:
a tube body, and
a flange joined to an outer side of the tube body, wherein
the tube body and the flange are formed from a foamed material;
the flange has a first end and a second end;
the entire flange has a constant thickness from the first end to the second end, without a recessed groove on the flange;
the first end is joined to and integral with the tube body, and the second end is not joined to the tube body;
an expansion ratio of the foamed material is from 1.5 to 1.8; and

the flange has a thickness B, the tube body at a point peripheral to where the flange is joined has a thickness A, and a value of B:A is greater than 1.40 and less than 1.97, wherein one of the following conditions is met:
(i) the thickness A is 1.53 mm or more and 2.13 mm or less, and the thickness B is 3.01 mm or more and 3.05 mm or less;
(ii) the thickness A is 2.26 mm or more and 2.81 mm or less, and the thickness B is 4.36 mm or more and 4.43 mm or less.

Assignees

• Kyoraku Co Ltd

Inventors

• Watanabe Akihiko
• Onodera Masaaki

Classifications

• B29C49/60

  Blow-needles · CPC title

• B29C49/0005

  characterised by the material · CPC title

• B29C49/04102

  extruding the material continuously · CPC title

• B29C49/04114 Primary

  for keeping constant thickness · CPC title

• B29L2023/00

  Tubular articles (B29L2024/00 takes precedence {; catheters B29L2031/7542}) · CPC title