Base material composition for bubble-dispersible foam tape, foam tape using same, and preparation method thereof

Patent metadata

Field	Value
Publication number	US-9605182-B2
Application number	US-201314395356-A
Country	US
Kind code	B2
Filing date	Apr 22, 2013
Priority date	Apr 24, 2012
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

Disclosed are a base material composition for a foam tape which has high foam stability and excellent peel strength, a foam tape prepared using the same, and a preparation method thereof. According to the present invention, the base material composition for a foam tape comprises an acrylic monomer, a radical initiator, a cross-linking agent, a porous filler, and a surfactant, wherein the surfactant comprises 60-90 wt % of a siloxane-based polymer and 10-40 wt % of a non-siloxane-based polymer. A foam tape prepared thereby is economical compared with conventional foam tapes, is free from a deteriorating adhesive force, and has excellent foam stability.

First claim

The invention claimed is:

1. A base material composition for foam tapes comprising:
an acrylic monomer, a radical initiator, a crosslinking agent, a porous filler, and a surfactant, wherein
the surfactant comprises a silicone surfactant having a molecular weight from 100 to 30,000 and an amine-based silicone compound, and the silicone surfactant and the amine-based silicone compound are presented in a ratio of 10:1 to 1:1,
the amine-based silicone compound comprises an amino-modified silicone-polyether copolymer,
the silicone surfactant comprises 80 wt % of a siloxane based polymer and 20 wt % of a non-siloxane based polymer, wherein the siloxane based polymer is a polyalkyleneoxide-modified polydimethylsiloxane, and the non-siloxane based polymer is a polyalkyleneoxide, and
the surfactant is presented in an amount of 0.1 parts by weight to 5 parts by weight, based on 100 parts by weight of the acrylic monomer.

2. The base material composition according to claim 1 , further comprising:
an additive selected from the group consisting of tackifiers, coupling agents, antistatic agents, dyes, pigments, UV blocking agents, antioxidants, processing oils, and mixtures thereof.

3. The base material composition according to claim 1 , wherein the acrylic monomer comprises at least one selected from the group consisting of butyl acrylate, butyl methacrylate, hexyl acrylate, hexyl methacrylate, n-octyl acrylate, n-octyl methacrylate, isooctyl acrylate, isooctyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, isononyl acrylate, isononyl methacrylate, acrylic acid, methacrylic acid, maleic acid, fumaric acid, acrylamide, N-vinyl pyrrolidone, N-vinyl caprolactam, and acrylonitrile.

4. The base material composition according to claim 1 , comprising:
0.1 parts by weight to 5 parts by weight of the radical initiator, 0.01 parts by weight to 5 parts by weight of the crosslinking agent, and 1 parts by weight to 10 parts by weight of the porous filler based on 100 parts by weight of the acrylic monomer.

5. The base material composition according to claim 1 , further comprising a processing oil comprising diisobutyl phthalate (DIBP), dioctyl phthalate (DOP), allyl ethers, paraffin oil, naphthalene oil, and combinations thereof.

Assignees

• Lg Chemical Ltd

Inventors

• Kim Ji-Hye
• Yoo Seung-Min
• Kim Jang-Soon

Classifications

• C08F220/18

  with acrylic or methacrylic acids · CPC title

• C08J2483/12

  containing polyether sequences · CPC title

• C09J2433/00

  Presence of (meth)acrylic polymer · CPC title

• C09J2483/00

  Presence of polysiloxane · CPC title

• C08J9/0061

  characterized by the use of several polymeric components · CPC title