Molded foam, method for manufacturing molded foam, mold and method for manufacturing mold

Patent metadata

Field	Value
Publication number	US-10960580-B2
Application number	US-201716080118-A
Country	US
Kind code	B2
Filing date	Jan 23, 2017
Priority date	Feb 29, 2016
Publication date	Mar 30, 2021
Grant date	Mar 30, 2021

Abstract

Provided are a molded foam ( 1 ) that is lightweight and can be manufactured at low cost, and can reduce abnormal noise due to friction with a vehicle structure effectively and for a long time, and a mold ( 10 ) that can mold a molded foam that is beautiful and attractive in appearance.

First claim

The invention claimed is:

1. A molded foam that is placed in a vehicle structure, the molded foam being prepared by expanding and molding synthetic resin in a molding space of a mold, comprising:
a contact face that comes in contact with the vehicle structure; and a non-contact face that does not come in contact with the vehicle structure, wherein the contact face is a rough surface, and the non-contact face is a smooth surface that is smoother than the contact face.

2. The molded foam according to claim 1 , having a face opposed to the vehicle structure and including depressions and projections at the face, wherein
the contact face is disposed at least at one of the depressions and the projections.

3. The molded foam according to claim 2 , wherein the contact face is a rough surface having a gloss value in a range of 0.5 to 7, the gloss value indicating gloss of the contact face.

4. The molded foam according to claim 1 , wherein one of faces of the molding space that is formed by transferring depressions and projections of a wooden surface of a wooden form forms the contact face.

5. A floor spacer for vehicles,
which comprises the molded foam according to claim 1 .

6. A luggage box for vehicles,
which comprises the molded foam according to claim 1 .

Assignees

• Sekisui Plastics

Inventors

• Yamagishi Takamasa
• Kurosaki Takahito

Classifications

• B60R13/08 Primary

  Insulating elements, e.g. for sound insulation {(sound insulating linings for trains B61D17/185; drivers' cabs for load-carrying vehicles insulated against vibrations or noise B62D33/0604; thermal or acoustic insulation of engines F02B77/11; damping of sounds using compensation by electro-acoustic methods G10K11/178)} · CPC title

• Y10T428/249953

  Composite having voids in a component [e.g., porous, cellular, etc.] · CPC title

• B29C33/424

  Moulding surfaces provided with means for marking or patterning (for injection moulding B29C45/372) · CPC title

• B29C33/56

  Coatings {, e.g. enameled or galvanised}; Releasing, lubricating or separating agents {(in-mould coating B29C37/0028; using or applying separating agents B29C37/0067)} · CPC title

• B29K2025/06

  PS, i.e. polystyrene · CPC title