Characteristics and applications:
RPF resin series are products of esterification of rosin with pentaerythritol. Provide excellent storage stability, heat oxidation resistance and light color. Dissolve in ester,ketone, aromatic hydrocarbon. Because of their good mutual-dissolvability with EVA, SIS, SBS, SBR, NC, they can increase initial adhesive strength of various kinds of adhesive. RPF resin series are excellent adhesion resins.
Specifications.
| Item No. | Appearance | Softening point (R&B oC) | Gardner Color (50%ethanol) |
Acid No. (mgKOH/g) | Heat stability 180℃:4h,Gardner |
| RPF70 | Light yellow flaky solid | 70±3 | ＜4 | ≤20 | ＜5 |
| RPF70W | Light yellow flaky solid | 70±3 | ＜1 | ≤25 | ＜2 |
| RPF90 | Light yellow flaky solid | 90±3 | ＜4 | ≤20 | ＜5 |
| RPF90W | Light yellow flaky solid | 90±3 | ＜1 | ≤25 | ＜2 |
| RPF100 | Light yellow flaky solid | 100±3 | ＜4 | ≤20 | ＜5 |
| RPF100W | Light yellow flaky solid | 100±3 | ＜1 | ≤25 | ＜2 |
| RPF100A | Light yellow flaky solid | 100±3 | ＜4 | ≤30 | ＜5 |
| RPF100B | Light yellow flaky solid | 100±3 | ＜5 | ≤40 | ＜7 |