Vinyl chloride resin aggregate particle, method for producing same, and gloves comprising same
US8937113B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2012 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Mar 29, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides vinyl chloride-based resin aggregate particles capable of providing a plastisol with excellent non-infiltrating property and favorable sagging property, a method for producing the same, and a glove using the same. The vinyl chloride-based resin aggregate particles of the present invention have a mean volume particle diameter of 10 to 60 μm, and the percentage of particles having a particle diameter of 10 to 60 μm is at least 50 vol %. The moisture absorption coefficient is 1.5 wt % or less when being retained for 24 hours under conditions of 30° C. and a relative humidity of 97.0±0.4%. A plastisol comprising 100 weight parts of the vinyl chloride-based resin aggregate particles and 160 weight parts of di-2-ethylhexyl phthalate satisfies a relationship of 3≦η70/η40≦1000. Further, in the vinyl chloride-based resin aggregate particles of the present invention, the number of voids having a void size of 1.0 μm or more per one aggregate particle is less than 5.0, and the percentage of particles having a particle diameter of 1.0 μm or less after ultrasonic treatment is less than 3.0 vol %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.