Back to results
US 12,630,723 B2Granted
Hybrid expandable composition and use thereof
AssigneeHenkel AG & Co. KGaA
InventorsTianjian Huang, Kristina Thompson
Life of this patent
Estimating the term…
Abstract
A hybrid expandable composition that provides improved expansion and loft properties is disclosed. The hybrid expandable composition is particularly useful in providing insulation and/or cushion to substrates.
Claims19
A hybrid expandable composition comprising:
- a. a binder system comprising a mixture of (i) a polyvinyl alcohol stabilized vinyl acetate ethylene emulsion polymer binder having a Tg range from about −35° C. to about −5° C. and (ii) a starch or a dextrin;
- c. a plurality of pre-expanded or expandable microspheres;
- d. a defoamer;
- and
- e. a water-soluble salt.
2 more elements
A hybrid expandable material prepared from a hybrid expandable composition comprising:
- a. about 30 to about 80 wt % of a binder system, which is a mixture of (1) a polyvinyl alcohol stabilized vinyl acetate ethylene emulsion polymer binder having a Tg range from about −35° C. to about −5° C. and (2) a starch or a dextrin;
- c. about 1 to about 15 wt % of a plurality of microspheres;
- d. about 0.1 to about 5 wt % of a water-soluble salt;
- and
- e. up to about 5 wt % of a defoamer;
- wherein the hybrid expandable material is characterized as having closed cell structure and open cell structure.
3 more elements
A method of forming a hybrid expandable material comprising the step of:
- a. preparing a hybrid expandable composition comprising:
- (i) about 30 to about 80 wt % of a binder system, which is a mixture of (1) a polyvinyl alcohol stabilized vinyl acetate ethylene emulsion polymer binder having a Tg range from about −35° C. to about −5° C. and (2) a starch or a dextrin;
- (ii) about 1 to about 15 wt % of a plurality of microspheres;
- (iv) about 0.1 to about 5 wt % of a water-soluble salt;
- and
- (v) up to about 5 wt % of a defoamer;
- b. applying the hybrid expandable composition onto a substrate;
- c. subjecting the hybrid expandable composition to rapid heating;
- d. cooling the hybrid expandable composition;
- whereby the hybrid expandable material is formed.
7 more elements
Dependencies are inferred from the claim text.