| 摘要 |
1361970 Adhesive coatings WINN & COALES AG LOGAN W D PARKER and M F BIRD 21 June 1971 [3 July 1970] 32390/70 Heading B2E [Also in Divisions C3 C4 and C5] A surface-protective membrane comprises a backing material bearing an adhesive layer of a composition comprising 70-95 wt % of mineral oil and 5-30 wt % of one or more polyolefins dispersed thereon. The olefin may be polypropylene or low- or high-density polyethylene.. Several mineral oils are specified. The backing material may be a cotton or glass fibre fabric, a non-woven web (e.g. nylon) or a composite sheet woven from strips of polypropylene (Specification 1349852). |
