Base interlining, methods for their manufacture and application thereof
AssigneeJohns Manville
InventorsSven Gamert, Krister Draxo
Life of this patent
Estimating the term…
Abstract
The invention relates to a novel binder system and its use for bonding textile fabrics as well as products containing such bonded textile fabrics. The materials according to the invention are suitable for manufacturing base interlinings which may be used for manufacturing base interlinings for sarking, roofing and sealing membranes, particularly for manufacturing coated sarking, roofing and sealing membranes.
Claims23
A textile fabric comprising:
- spunbonded textile fibers;
- and
- a binder to solidify the textile fibers into the textile fabric,
- wherein the binder is formed from a binder system comprising an aqueous dispersion of:
- starch;
- and
- emulsion polymers,
- wherein the aqueous dispersion has a viscosity of between 10 and 2200 mPa*s in accordance with DIN EN ISO 3219 and 23° C., and
- wherein the binder system has no ethylenically unsaturated carboxylic acids based on the weight of the binder system.
An article comprising:
- a spunbonded fiber-containing textile fabric;
- and
- a binder to solidify the textile fabric,
- wherein the binder is formed from a binder system comprising an aqueous dispersion of:
- starch;
- and
- emulsion polymers,
- wherein the aqueous dispersion has a viscosity of between 10 and 2200 mPa*s in accordance with DIN EN ISO 3219 and 23° C., and
- wherein the binder system has 3 wt. % or less of ethylenically unsaturated carboxylic acids based on the weight of the binder system.
A sarking, roofing, or coated sealing membrane reinforced by a base interlining, such interlining comprising a textile fabric which has been bonded with a binder system, the binder system comprising:
- 20 to 80 wt % (dry mass) of an aqueous dispersion of polymerisates based on conjugated aliphatic dienes and vinyl aromatic compounds,
- 10 to 90 wt % (dry mass) starch, and
- 0 to 10 wt % (dry mass) additives,
- wherein said fabric is a spunbonded nonwoven based on a partially aromatic or fully aromatic polyester, and wherein the wt % are based on the dry mass of the binder;
- and wherein the binder system has a viscosity of between 10 and 2200 mPa*s in accordance with DIN EN ISO 3219 and 23° C.
Dependencies are inferred from the claim text.