摘要:
본 발명은 UV 흡광도가 높은 형광성 폴리페놀계 생성물의 제조방법, 이의 에폭시화 및 폴리페놀계 생성물 및 에폭시화된 유도체 및 이들의 조성물에 관한 것이다. 상기 폴리페놀계 생성물은 약 170℃의 온도에서 반응 혼합물로부터 제거되는 산 촉매의 존재하에 몰과량의 페놀과 함께 약 80℃ 내지 약 100℃의 온도에서 글리옥살을 가열함으로써 제조된다. 반응 혼합물에 충전된 글리옥살 대 페놀의 전체 몰비는 페놀의 몰에 대하여 약 0.15 내지 0.22몰의 글리옥살이다. 상기 글리옥살은 페놀에 연속적으로 또는 단계적으로 첨가되어 폴리페놀을 제조하기 위해 충전되는 글리옥살 전체량의 알데히드 단위의 약 70% 미만으로 반응 혼합물중의 알데히드 단위를 유지시킨다. 물은 반응 혼합물로부터 단계적으로 또는 연속적으로 제거된다. 촉매는 일반적으로 고온에서 반응 혼합물을 추가로 증류시킴으로써 반응 혼합물로부터 제거된다.
摘要:
The specification discloses a method for the manufacture of a fluorescent polyphenolic product with high UV absorbance, its subsequent epoxidation as well as polyphenolic products and epoxidized derivatives and compositions thereof. The polyphenolic products are prepared by heating glyoxal at a temperature of about 80 DEG C. to about 100 DEG C. with a molar excess of a phenol in the presence of an acidic catalyst which is eliminated from the reaction mixture at a temperature below about 170 DEG C. The total mole ratio of glyoxal to phenol charged to the reaction mixture is about 0.15 to 0.22 moles of glyoxal for each mole of phenol. The glyoxal is added continuously or by stepwise additions to the phenol so as to keep the aldehyde units in the reaction mixture to less than about 70% of the aldehyde units in the total quantity of glyoxal to be charged for making the polyphenol. Water is distilled stepwise or continuously from the reaction mixture. The catalyst is removed from the reaction mixture by further distilling the reaction mixture, generally at higher temperatures. After removal of the catalyst, unreacted phenol is removed by distillation and the reaction mixture is heated at a temperature of about 175 DEG C. to 200 DEG C. for about 0.25 hours to about 3 hours to produce a polyphenolic reaction product having high fluorescence, high UV absorbance and high solubility in organic solvents. The polyphenolic reaction product can be epoxidized by conventional means and such epoxy products used in the manufacture of laminates, coatings and adhesives.