PRESSURE-SENSITIVE ADHESIVE

PURPOSE:To obtain a pressure-sensitive adhesive having excellent restrippability and suitable for use as a masking material, etc., by using a graft polymer having a main chain composed of a specific acrylic ester and side chains composed of a specific high-molecular compd. and a side-chain forming c...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	ONISHI HIROHITO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE:To obtain a pressure-sensitive adhesive having excellent restrippability and suitable for use as a masking material, etc., by using a graft polymer having a main chain composed of a specific acrylic ester and side chains composed of a specific high-molecular compd. and a side-chain forming compd. as components. CONSTITUTION:A pressure-sensitive adhesive comprises a graft polymer having a main chain composed of an acrylic polymer having a glass transition point not higher than 0 deg.C and composed of at least 50wt.% acrylic ester obtd. by using a 14C or lower primary or secondary alcohol and side chains composed of a compd. having a weight-average MW of 1,000 or above and an SP value wherein a difference in the SP value between the main chain and the side chain is 6 or smaller and 1-30pts.wt. (per 100pts.wt. graft polymer) side chain forming compd. The alcohol component in the acrylic ester or esters for the acrylic polymer has an average carbon atom number of pref. 4-12 from the viewpoint of the flexibility of the acrylic polymer. The SP value is determined from a formula representing the total value (SIGMAFi) of gram molecule suction constant/the total value (SIGMAVi) of gram molecule volume.