FIELD: polymer production.
SUBSTANCE: alkyd-siloxane resin is prepared via interaction of alkyd resin with polyorganosiloxane on heating. Method is distinguished by that polyorganosiloxane is notably polyphenylethoxysiloxane with weight proportion of ethoxy groups 17-40%, which is first treated with butyl alcohol at 130-150°C for 1-2 h until content of ethoxy groups achieves 10-13%, after which resulting modifier is brought into cocondensation with low-viscosity alkyd resin having acid number 5-15 mg KOH/g and viscosity of its 60% xylene solution 40-60 s at 160-170 and alkyd resin-to-modifier ratio (65-85):(20-35). Alkyd resin utilized is based on vegetable oils, pentaerythritol, and phthalic anhydride.
EFFECT: reduced increase in viscosity of alkyd-siloxane resin and enhanced protective properties of coatings based on this resin.
2 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCTION OF THE URALKYD PITCH | 2006 |
|
RU2307129C1 |
| METHOD FOR PREPARING ALKYDE RESIN | 2004 |
|
RU2266921C1 |
| METHOD OF PRODUCING MODIFIED ALKIDE RESINS | 0 |
|
SU821450A1 |
| ALKYD RESIN PRODUCTION PROCESS (OPTIONS) AND LACQUER MATERIAL BASED THEREON | 2004 |
|
RU2249017C1 |
| 0 |
|
SU1669926A1 | |
| METHOD OF PRODUCING ALKIDE RESINS | 0 |
|
SU819123A1 |
| VARNISH | 0 |
|
SU726145A1 |
| METHOD FOR PREPARING ALKYD OLIGOMERS AND ALKYD LACQUER CONTAINING ALKYD OLIGOMER | 2005 |
|
RU2285705C1 |
| METHOD OF ALKYD VARNISH PRODUCTION AND METHOD OF BULK COMPONENT FEED TO REACTOR WITH EXPLOSIVE MEDIUM, SUCH AS USED IN ALKYD VARNISH PRODUCTION | 2007 |
|
RU2348667C1 |
| METHOD OF SYNTHESIS OF ALKYD RESIN (VERSIONS) AND PAINT AND VARNISH MATERIAL BASED ON THEREOF | 2001 |
|
RU2200741C1 |
