Melt-adhesives for sealing off rocks or building materials

Details Melt-adhesives for sealing off rocks or building materials Melt-adhesives for sealing off rocks or building materials

2007-11-20

2007-11-20

Truong, Duc (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

C528S288000, C528S332000, C528S335000, C455S263000, C455S267000

Reexamination Certificate

active

10312916

ABSTRACT:
Polyamide hot-melt adhesives based on the reaction products of polymeric fatty acids, C14-C18monocarboxylic acids, C6-C12dicarboxylic acids and diamines which do not contain any water-extractable, environmentally toxic constituents, which are suitable for sealing cavities in soils, in rock formations, building structures and/or walls, in particular for sealing tunnels, galleries, shafts, channels or caverns, to protect against the penetration of water or the penetration of liquids or gases which contain hazardous substances.

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