FIELD: chemistry.
SUBSTANCE: thermoplastic material, having a polyethylene matrix which contains 1-70 pts. wt polypropylene per 100 pts. wt polyethylene matrix, is used to make medical and hygienic films. After heating, said material is passed through a pressing zone between cooled rollers, where the initial film-type linen is heated to molten state of the material of the polyethylene matrix but not up to temperature of molten polypropylene.
EFFECT: inproved operational characteristics of film-type linen including for films with thickness equal to less than 20 mcm.
25 cl, 1 dwg, 6 tbl, 2 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF MAKING MULTILAYER FILM WEB | 2017 |
|
RU2734515C2 |
METHOD FOR MAKING FILLED FILM WEB | 2017 |
|
RU2734514C2 |
FILMS, ARTICLES PRODUCED THEREOF AND METHODS OF THEIR FABRICATION | 2007 |
|
RU2448838C2 |
METHOD OF FILM STRETCHING | 2012 |
|
RU2607742C2 |
METHOD OF FILM STRETCHING | 2012 |
|
RU2717530C2 |
MULTILAYER PACKAGING MATERIAL FOR CONTAINER | 2010 |
|
RU2544668C2 |
BIAXIALLY ORIENTED FILM | 2008 |
|
RU2475362C2 |
UNIDIRECTIONAL HEAT-SHRINKABLE POLYMERIC LABEL BASED ON POLYETHYLENE | 2012 |
|
RU2621598C2 |
RECYCLABLE PACKAGING POLYETHYLENE FILM WITH IMPROVED RIGIDITY | 2019 |
|
RU2784662C2 |
PERMEABLE FILMS AND FILM-NONWOVEN COMPOSITE MATERIAL AND METHODS OF PREPARATION THEREOF | 1994 |
|
RU2140855C1 |
Authors
Dates
2011-02-20—Published
2006-04-26—Filed