将松香催化加氢可去除枞酸型树脂酸的共轭不饱和性，克服其易于氧化变色的缺点。
Conjugated unsaturation of abietic resin acids can be removed through catalytic hydrogenation to overcome the shortcomings of oxidation and color degradation in rosin.
采用新型的变色聚氨酯树脂及其相关原材料制备了应力变色聚氨酯合成革。
Polyurethane stress color changing synthetic leather (PSCSL) is manufactured by adopting new type of polyurethane resins and relevant materials.
以密胺树脂为壳材、结晶紫内酯-硬脂酸-十四醇组成的热敏变色材料为芯材，采用原位聚合法制备热敏变色微胶囊。
The photochromic microcapsules were prepared by in-situ polymerization, using melamine-formaldehyde resin as wall materials and photochromic materials as core materials.
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