申请人:The Clorox Company
公开号:US04964870A1
公开(公告)日:1990-10-23
The invention provides novel peracid precursors representative of which is the structure: ##STR1## wherein R.sup.1 is alkyl of 1 to 20 carbon atoms; R.sup.2 is OH, --O--R.sup.3, or ##STR2## and X.sup.1, X.sup.2, Y and Z are individually selected from H, SO.sub.3.sup.--, CO.sub.2.sup.--, NO.sub.2, NR.sub.4.sup.5+, halogen, R.sup.6 and mixtures thereof; wherein R.sup.3 of --O--R.sup.3 is alkyl of 1 to 20 carbon atoms; R.sup.4 of ##STR3## is alkyl of 1 to 20 carbon atoms; R.sup.5 of NR.sub.4.sup.5+ is selected from H, alkyl of 1 to 24 carbon atoms and mixtures thereof; and R.sup.6 is alkyl of 1 to 20 carbon atoms. In one embodiment of the invention, the novel peracid precursors are combined with a source of hydrogen peroxide and sufficient quantities of buffer to impact an alkaline pH when the composition is placed in aqueous solution. Preferred embodiments of the invention include wherein R.sup.2 is hydroxy, and R.sup.1 is alkyl of 1 to 20 carbon atoms (monoester); and wherein R.sup.2 is ##STR4## and R.sup.1 and R.sup.4 are alkyls of 1 to 20 carbon atoms (diester) and may be either symmetrical (i.e., R.sup.1 =R.sup.4) or mixed (i.e., R.sup.1 .noteq.R.sup.4). The mixed diester embodiment appears to provide benefits of mixed hydrophobic/hydrophilic peracid generation to oxidize both hydrophobic and hydrophilic soils. Various detergent adjuncts known to those skilled in the art may be added, such as surfactants, builders, fragrances, antimicrobial compounds and the like.
该发明提供了新型过酸前体,其中一种代表性结构为:##STR1## 其中R.sup.1为1至20个碳原子的烷基;R.sup.2为OH,--O--R.sup.3,或##STR2## X.sup.1、X.sup.2、Y和Z分别选自H、SO.sub.3.sup.--、CO.sub.2.sup.--、NO.sub.2、NR.sub.4.sup.5+、卤素、R.sup.6和其混合物;其中--O--R.sup.3的R.sup.3为1至20个碳原子的烷基;##STR3##的R.sup.4为1至20个碳原子的烷基;NR.sub.4.sup.5+的R.sup.5选自H、1至24个碳原子的烷基和其混合物;R.sup.6为1至20个碳原子的烷基。在该发明的一种实施例中,将新型过酸前体与过氧化氢源和足够量的缓冲剂结合,在将组合物置于水溶液中时,会产生碱性pH。该发明的首选实施例包括R.sup.2为羟基,R.sup.1为1至20个碳原子的烷基(单酯);以及R.sup.2为##STR4##,R.sup.1和R.sup.4为1至20个碳原子的烷基(二酯),可以是对称的(即,R.sup.1 = R.sup.4)或混合的(即,R.sup.1 ≠ R.sup.4)。混合二酯实施例似乎提供了混合疏水/亲水性过酸的优点,以氧化疏水和亲水的污垢。可以添加各种洗涤剂辅助剂,如表面活性剂、建筑剂、香料、抗菌化合物等。