Felt-based four-side-processing and method for producing said processing material

Patent metadata

Field	Value
Publication number	US-12534646-B2
Application number	US-202218570523-A
Country	US
Kind code	B2
Filing date	Jun 23, 2022
Priority date	Jul 7, 2021
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

A felt-based four-sides-processing material having a release paper-attached pressure-sensitive adhesive layer is provided. The felt-based four-sides-processing material has a continuous or non-continuous pressure-sensitive adhesive region on any of flat surfaces of a base material in a longitudinal direction of the flat surface and release paper pasted to the pressure-sensitive adhesive layer, where a width of the pressure-sensitive adhesive layer is narrower than a width of a short side of the base material, and a non-pressure-sensitive adhesive region where a pressure-sensitive adhesive is not present is provided along at least one edge in the longitudinal direction of the base material entirely or partially, and the release paper has the same size as that of the flat surface of the base material.

First claim

The invention claimed is:

1 . A felt-based four-sides-processing material having a release paper-attached pressure-sensitive adhesive layer, the felt-based four-sides-processing material comprising:
a rectangular column-shaped base material comprising a flame-retardant felt material; a pressure-sensitive adhesive layer having a pressure-sensitive adhesive region provided continuously or discontinuously on one of flat surfaces of the base material in a longitudinal direction of the flat surface; and release paper pasted to the pressure-sensitive adhesive layer, wherein the base material is a laminate obtained by laminating felt rock wool in a thickness direction, the resulting felt laminate having a thickness in a range from 3 mm to 50 mm and a width in a range from 5 mm to 10 cm and having a rectangular column shape; the pressure-sensitive adhesive layer has a configuration such that on the flat surface of the base material directly on which the pressure-sensitive adhesive layer is provided, the pressure-sensitive adhesive region having a pressure-sensitive adhesive and a non-pressure-sensitive adhesive region where the pressure-sensitive adhesive is not present are alternately formed along at least one edge in a longitudinal direction of the flat surface, and a non-pressure-sensitive adhesive region where the pressure-sensitive adhesive is not present is provided, in at least one edge part in a short side direction of the base material, at a part including at least one end part of the edge; and the release paper has a size equal to a size of the flat surface of the base material.

2 . The felt-based four-sides-processing material according to claim 1 ,
wherein the pressure-sensitive adhesive layer has a structure such that pressure-sensitive adhesive layers are formed on both sides of a film support, and at least the pressure-sensitive adhesive layer on the side where the release paper is pasted has a configuration having the non-pressure-sensitive adhesive region where the pressure-sensitive adhesive is not present along at least one edge in the longitudinal direction of the base material or has a configuration alternately having the pressure-sensitive adhesive region having the pressure-sensitive adhesive and the non-pressure-sensitive adhesive region where the pressure-sensitive adhesive is not present along at least one edge in the longitudinal direction of the base material.

3 . The felt-based four-sides-processing material according to claim 1 , wherein in the pressure-sensitive adhesive layer, the pressure-sensitive adhesive region has a total area in a range from 25% to 99% relative to a total area of the flat surface of the base material where the pressure-sensitive adhesive layer as 100%.

4 . A method for producing the felt-based four-sides-processing material according to claim 1 , the method comprising:
laminating a pressure-sensitive adhesive layer-forming member directly on one of the flat surfaces of the base material made of rock wool so as to form the pressure-sensitive adhesive layer-forming member comprising the pressure-sensitive adhesive layer and a release paper on a surface of the pressure-sensitive adhesive layer at an opposite side to a side facing the base material, thereby a laminate of the base material, the pressure-sensitive adhesive layer, and the release paper in this order being obtained,
wherein the base material is the felt laminate obtained by laminating the felt rock wool in the thickness direction of the base material,
the felt laminate is configured such that the thickness is in the range from 3 mm to 5 mm, and a shape of the flat surface is a square or rectangle in which each length of two sides of the flat surface of the base material is independently in the range of 50 cm or longer; and
cutting the laminate obtained in the laminating in the longitudinal direction, thereby obtaining the rectangular column-shaped, felt-based four-sides-processing material having the width adjusted to in the range from 5 mm to 10 cm, wherein the pressure-sensitive adhesive layer-forming member has a shape of a flat surface equal to a shape of the flat surface of the base material directly on which the pressure-sensitive adhesive layer is to be provided, the pressure-sensitive adhesive layer-forming member has Configuration (B)
in which the shape of the release paper-attached pressure-sensitive adhesive layer as the pressure-sensitive adhesive layer-forming member, after being cut in the cutting is such that the pressure-sensitive adhesive region and the non-pressure-sensitive adhesive region are alternately formed along at least one edge in the longitudinal direction of the base material; and the non-pressure-sensitive adhesive region is formed in the at least one edge part in the short side direction of the base material, at the part including the at least one end part of the edge.

5 . A felt-based four-sides-processing material having a release paper-attached pressure-sensitive adhesive layer, the felt-based four-sides-processing material comprising:
a rectangular column-shaped base material comprising a flame-retardant felt material; a pressure-sensitive adhesive layer having a continuous pressure-sensitive adhesive region provided on one of flat surfaces of the base material in a longitudinal direction of the flat surface; and release paper pasted to the pressure-sensitive adhesive layer, wherein the base material is a laminate obtained by laminating felt rock wool in a thickness direction, the resulting felt laminate having a thickness in a range from 3 mm to 50 mm and a width in a range from 5 mm to 10 cm and having a rectangular column shape; the pressure-sensitive adhesive layer has a configuration such that the continuous pressure-sensitive adhesive region having a pressure-sensitive adhesive is provided directly on the flat surface of the base material where the pressure-sensitive adhesive layer is provided in a width narrower than a width of a short side of the base material, and a non-pressure-sensitive adhesive region where the pressure-sensitive adhesive is not present is provided along whole of at least one edge in the longitudinal direction; and the release paper has a size equal to a size of the flat surface of the base material.

6 . The felt-based four-sides-processing material according to claim 5 , wherein the pressure-sensitive adhesive layer has a structure such that pressure-sensitive adhesive layers are formed on both sides of a film support, and at least the pressure-sensitive adhesive layer on the side where the release paper is pasted has a configuration having the non-pressure-sensitive adhesive region where the pressure-sensitive adhesive is not present along at least one edge in the longitudinal direction of the base material or has a configuration alternately having the pressure-sensitive adhesive region having the pressure-sensitive adhesive and the non-pressure-sensitive adhesive region where the pressure-sensitive adhesive is not present along at least one edge in the longitudinal direction of the base material.

7 . The felt-based four-sides-processing material according to claim 5 , wherein in the pressure-sensitive adhesive layer, the pressure-sensitive adhesive region has a total area in a range from 25% to 99% when a total area of the flat surface of the base material where the pressure-sensitive adhesive layer is provided as 100%.

8 . A method for producing the felt-based four-sides-processing material according to claim 1 , the method comprising:
laminating a pressure-sensitive adhesive layer-forming member directly on one of the flat surfaces of the base material made of rock wool so as to form the pressure-sensitive adhesive layer-forming member comprising the p

Assignees

• Yoshino Gypsum Co

Inventors

• Yamashita Takuji
• Watanabe Yusuke
• Tsukamoto Shun

Classifications

• C09J2400/10

  Presence of inorganic materials · CPC title

• C09J2301/302

  the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C · CPC title

• C09J2301/204

  the adhesive coating being discontinuous · CPC title

• C09J2301/122

  the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape · CPC title

• C09J2203/346

  for building applications e.g. wrap foil · CPC title