Process and device for coating a support using a crosslinkable silicone composition
US6395338B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1999 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Mar 19, 2019 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/001
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Process for the continuous coating of a strip of paper or of a textile support using a silicone composition, comprising at least one POS A containing SiVi or SiOR groups, a POS B containing SiH groups and a catalyst C (for hydrosilylation or for dehydrogeno-condensation) and not corresponding to an LTC/FC silicone system, the said process comprising the following steps: step 1 in which conditions for homogeneously mixing the constituents A, B and C are used such that the homogeneity obtained is reflected by a DSC signature comprising a Gaussian peak for which the peak end temperature T3 is in the range from a value above 110° C. to 200° C., the said conditions making use of means for very precisely metering the constituents, means for premixing the constituents other than C and means for homogeneously mixing C with the premix(es) prepared; step 2 of conveying the homogeneous mixture to the coating site; step 3 of coating the support with the homogeneous mixture; and step 4 of crosslinking, in particular with thermal means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.