FIELD: chemistry.
SUBSTANCE: invention relates to an antioxidant composition used for stabilizing butadiene-styrene block copolymers. Described is an antioxidant composition used to stabilize butadiene-styrene block copolymers consisting of (1) phenol, (2) sulfur-containing substituted phenol, (3) amine and (4) phosphite antioxidants taken in relation (1):(2):(3):(4)=1:22:(10–2):(2–10) wt. parts.
EFFECT: low level of formation of high-molecular fraction in finished articles, stabilization of colour of copolymer, avoiding yellowing during prolonged storage and thermal exposure.
18 cl, 1 tbl, 19 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING MODIFIED COPOLYMERS | 2019 |
|
RU2733742C1 |
| HYDROLYSIS-RESISTANT PHOSPHITE COMPOSITIONS | 2010 |
|
RU2563457C2 |
| LIQUID MIXTURES OF PHOSPHATES AS STABILISERS | 2007 |
|
RU2455325C2 |
| STABILISING MIXTURE FOR HIGH CHLORINE RESISTANCE | 2006 |
|
RU2408617C2 |
| STABILISATION OF POLYMERS WITH STYRENATED P-CRESOLS | 2008 |
|
RU2453564C2 |
| CABLE INSULATION | 2018 |
|
RU2750866C2 |
| DIPHOSPHITE DERIVATIVES 3-PHENYLBENZOFURAN-2-ONE AS STABILIZERS | 2015 |
|
RU2700027C2 |
| STABILISING COMPOSITION FOR POLYMERS | 2011 |
|
RU2584419C2 |
| ADDITIVE MIXTURE | 2017 |
|
RU2750890C2 |
| ANTIOXIDANTS FOR POLYAMIDES | 2002 |
|
RU2307852C9 |
