Printable adhesive composite
US6162858A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1998 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Oct 21, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2301/302
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a composite of the printing-writing medium/adhesive type, in which the said printing-writing medium consists of a polyolefin in sheet form and is provided on one of its sides with the said adhesive, the said composite being characterized in that it consists of: PA1 (A) a printing-writing medium in the form of a microporous sheet of polyolefin of high molecular weight, and PA1 (B) a pressure-sensitive adhesive without a plasticizer and containing PA2 (1) 90 to 160 parts by weight of a rosin resin having an average molecular weight (AMW) of between 600 and 1500 and a softening point above 85.degree. C., per PA2 (2) 100 parts by weight of an elastomer polymer material consisting of or containing at least one polyisoprene compound. This composite is especially useful for producing labels intended for the identification of blood bags made of SEBS or EVA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.