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CAPA® HC grades have been developed for use in speciality water borne polyurethane dispersions. These products all contain two hydroxyl functions for reaction with isocyanates and a pendant carboxylic group which remains unchanged in this reaction and can be used to disperse the urethane. CAPA® HC grades are all low melting waxes, in comparison with DMPA which is a high melting solid. CAPA® HC grades can be used to replace all or part of DMPA in anionic polyurethane dispersions.
CAPA® polyols are used as a soft segment in water borne polyurethane dispersions. These can be typically used to bond soles to uppers.
The benefits provided by CAPA® products are:
- Good high temperature resistance
- Long open time
- Good bond strength
- Good hydrolysis resistance
- Good adhesion to leather
- Wide temperature performance
Adhesive Formulations from CAPA ® 2402 (99 KB)
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DMPA Initiated CAPA HC Grades (26 KB)
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Molecular Weight of CAPA HC Grades (27 KB)
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PU Adhesives Based on CAPA 2302 (24 KB)
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| CAPA 2200A |
2000MWt, NPG initiated diol with faster reactivity : upgraded hydrolysis resistance
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| CAPA 2302 |
3000MWt, BDO initiated diol with faster reactivity
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| CAPA 2402 |
4000MWT, BDO initiated diol with faster reactivity
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