JP3769710B2 - Cleaning composition for automobile - Google Patents

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Publication number
JP3769710B2
JP3769710B2 JP32512397A JP32512397A JP3769710B2 JP 3769710 B2 JP3769710 B2 JP 3769710B2 JP 32512397 A JP32512397 A JP 32512397A JP 32512397 A JP32512397 A JP 32512397A JP 3769710 B2 JP3769710 B2 JP 3769710B2
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Japan
Prior art keywords
acid
water
amino
dimethylpolysiloxane
composition according
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JP32512397A
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Japanese (ja)
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JPH11116988A (en
Inventor
博義 村田
隆太郎 日高
明三 田中
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Soft 99 Corp
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Soft 99 Corp
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Description

【0001】
【産業上の利用分野】
本発明は、自動車用洗浄剤組成物に関する。さらに詳しくは自動車等の塗装面上及びガラス面上に悪影響を与えずに洗浄と同時に撥水性被膜を形成する効果も達成できる組成物に関する。
【0002】
【従来の技術】
自動車等の塗装面は、太陽光線、雨水、空気などの劣化要因にさらされ、大気中の埃、ばい煙、油粒子、ホコリなどの汚れが付着している。これらの汚れを除去する為に界面活性剤を主成分とする自動車用洗浄剤が用いられている。しかしながら、この界面活性剤のなかには洗車中に乾燥し塗装面にこびりつき、水で洗い流した時塗装面上にシミを残すものもあり安全な洗浄剤が望まれている。
【0003】
このように汚れを除去した後、塗装面の劣化を防止し、塗装面を保護するためにワックスが施用されている。従来、塗装面へのワックスの施用方法としては、先ず多量の水で予め塗装面を自動車用シャンプーで洗浄したのち、水分を完全に拭きとり、次いでワックスがけを行なう方法が行なわれている。
【0004】
【発明が解決しようとする課題】
しかしながら、このようなワックスの施用方法は、先ず洗浄作業を行なって水分を完全に拭きとり、次いでワックスがけを行なう2段階の工程よりなり、時間と労力を必要とする極めて煩雑な作業である。本発明は、この煩雑な作業を改良し、1段階で行なうことができ、洗浄作業を行ないながら同時にワックスがけができる自動車用洗浄剤組成物を提供することを目的とする。
【0005】
【課題を解決するための手段及び作用】
本発明は、上記の背景のもと、洗浄作業を行なうだけで同時に撥水性被膜を形成する効果も達成できる組成物を得ることを目的として種々検討を重ねた結果、或る種の組成物によりこの目的を達成することを知見した。
【0006】
本発明は上記課題を解決したもので、下記成分(a)、(b)、(c)、(d)を水に溶解又は分散させたことを特徴とする自動車用洗浄剤組成物である。
(a)一般式(化1)で表わされるトリメチルシロキシケイ酸とオルガノポリシロキサンの混合液を水に分散させたシリコーンエマルジョン
【化1】
〔(CHSiO1/2・〔SiO
(式中X=1〜3、Y=0.5〜8を表わす)
(b)アミノ変性ジメチルポリシロキサン
(c)有機酸
(d)一般式(化2)で表わされるアルキルグルコシド
【化2】
2n+1O(C10
(式中n=8〜16、1<Z<2を表わす)
【0007】
以下、本発明を詳細に説明する。本発明の自動車用洗浄剤組成物の(a)成分である一般式(化1)で表わされるトリメチルシロキシケイ酸とオルガノポリシロキサンの混合液は塗装面に密着して撥水性被膜を形成することができ、しかも撥水持続性に優れた性能を有するものである。
【0008】
トリメチルシロキシケイ酸とオルガノポリシロキサンの混合液は、トリメチルシロキシケイ酸を粘度10〜10000cs(25℃)の範囲のジメチルポリシロキサン等に20〜60%の割合で溶解させたものであり、20%未満では撥水性が劣り好ましくない。60%を越えると均一な被膜が得られず、ムラが発生するので好ましくない。トリメチルシロキシケイ酸とジメチルポリシロキサンの混合液として、例えば、ワッカーケミカルズ イーストアジア社のVP−1038、東レダウコーニングシリコーン社のDC593等をあげることができる。また、これ以外でも一般式(化1)で表わされるトリメチルシロキシケイ酸を任意のジメチルポリシロキサン等に溶解させることにより使用することができる。
【0009】
一般式(化1)で表わされるトリメチルシロキシケイ酸とオルガノポリシロキサンの混合液を水に分散させたシリコーンエマルジョンは、トリメチルシロキシケイ酸とジメチルポリシロキサンの混合液を界面活性剤等を用いて水に乳化分散させて作成することができる。
【0010】
界面活性剤としては、非イオン系界面活性剤、カチオン系界面活性剤、両性界面活性剤、アニオン系界面活性剤、シリコーン系界面活性剤、フッ素系界面活性剤等の1種又は2種以上併用して用いることができる。トリメチルシロキシケイ酸とジメチルポリシロキサンの混合液を水に分散させたシリコーンエマルジョンとしては、例えばワッカーケミカルズイーストアジア社のR−2701、東レダウコーニングシリコーン(株)のBY−22−049等を用いることができる。
【0011】
トリメチルシロキシケイ酸とオルガノポリシロキサンの混合液は、本組成物中に0.5〜15wt%、好ましくは1〜10wt%あればよく、0.5wt%より少ないと十分な撥水性付与効果を与えられない。又15wt%を超えると必要以上になりべたつきが発生するという欠点があり好ましくない。
【0012】
本発明の自動車用洗浄剤組成物の(b)成分であるアミノ変性ジメチルポリシロキサンは、トリメチルシロキシケイ酸のオルガノポリシロキサン溶液の撥水性及び定着性を向上させる補助剤としての働きを持ち、アミノ変性ジメチルポリシロキサンが先ず塗面に吸着し、トリメチルシロキシケイ酸とオルガノポリシロキサンの混合液が定着して撥水性被膜を固着させ、撥水の持続性を向上させるものである。
【0013】
アミノ変性ジメチルポリシロキサンは、ジメチルポリシロキサン中の側鎖、又は末端、或いは側鎖、末端の両方にアミノ基を結合させた物を使用することができ、1種又は2種以上併用して使用することができる。
【0014】
アミノ変性ジメチルポリシロキサンとしては粘度が25℃において10〜25000cs、アミノ当量が300〜2000の範囲のものが好ましい。アミノ当量300未満では親水性が高くなり、水で流されやすくて定着補助剤として働かず好ましくない。一方、アミノ当量が2000を超えると親油性が高すぎてアミノ基の作用が弱くなり、定着補助剤として働かず好ましくない。
【0015】
組成物中におけるアミノ変性ジメチルポリシロキサンの配合量は0.01〜5wt%であることが好ましく、特に0.05〜2wt%であることがより好ましい。配合量が0.01wt%未満だと十分な定着作用が得られず撥水性効果が悪くなる。配合量が5wt%を越えると、アミノ基の作用が強くなりすぎてムラが発生しやすくなり好ましくない。
【0016】
本発明の自動車用洗浄剤組成物の(c)成分である有機酸は、アミノ変性ジメチルポリシロキサンと反応して、アミノ変性ジメチルポリシロキサンの親水性を向上させ、組成物中にアミノ変性ジメチルポリシロキサンを均一に溶解又は分散させる安定化に付与するものである。
【0017】
前記有機酸としては、例えば、カルボン酸、スルホン酸、スルフィン酸等が使用することができる。もっとも有機酸中でもカルボン酸が好ましく、例えば、ギ酸、酢酸、プロピオン酸、n−酪酸、イソ酪酸、ヒバリン酸、吉草酸、イソ吉草酸、ヘキサン酸、2−エチル酪酸等の一価のカルボン酸、或いはグリコール酸、乳酸、リンゴ酸、酒石酸、グルコン酸、クエン酸等のオキシカルボン酸等を挙げることができる。
【0018】
この発明においては、上記各種のカルボン酸の中から1種単独で使用することもできるし、2種以上を組み合わせて併用することもできる。この発明において使用されることのできる有機カルボン酸のうち最も好適なのは一価のカルボン酸又はオキシカルボン酸であり、特にギ酸、酢酸、グリコール酸、乳酸を使用することが好ましい。
【0019】
この発明における(c)成分である有機酸の配合量は、(b)成分であるアミノ変性ジメチルポリシロキサンの中和に必要量の0.5〜5.0当量部であり、特に好ましくは1.0〜3.0当量部使用することが好ましい。0.5当量部未満では、アミノ変性ジメチルポリシロキサンが組成物中に安定に溶解又は分散せずに分離してしまい十分な効果が得られない。5.0当量部を超えると、皮膚に付着した際に皮膚に与える刺激が大きくなり、又、自動車等の塗装面に付着した場合には、その塗装面を傷める可能性が大きくなり好ましくない。
【0020】
本発明の自動車用洗浄剤組成物の(d)成分である一般式(化2)で表わされるアルキルグルコシドは、親水基である糖と疎水基であるアルキル基とをグルコシド結合で結んだ非イオン系の界面活性剤であり、生分解性に優れ刺激性も低い。又、細かくクリーミーな泡だちを特徴としており、この泡だちは汚れによって左右されずに安定した泡だちが得られ、洗浄作用に優れた効果を発揮するものである。
【0021】
さらに、この界面活性剤自身は、塗装面上及びウィンドガラス面上で乾燥固化しても、塗装面やガラス面にシミ、ふくれ、変色などの悪影響を与えることがなく、自動車用洗浄剤として最適であり、1.0〜30wt%、より好ましくは1.5〜20wt%含有すればよい。1.0wt%未満では十分な洗浄性効果が得られず、30wt%を超えると十分な撥水性効果が得られず好ましくない。
【0022】
本発明のアルキルグルコシドとしては次に示すものが例として挙げられ、1種又は2種以上を併用して使用することができる。
グルコポン 650EC :n=8〜14 Z=1.5
グルコポン 225CSUP :n=8〜10 Z=1.6
グルコポン 600CSUP :n=12〜16 Z=1.4
グルコポン 600EC :n=8〜14 Z=1.4
プランタケア 2000UP :n=8〜16 Z=1.4
以上ヘンケル白水(株)製
AG−8 : n=8 Z=1.3〜2.0
日本精化(株)製
【0023】
アルキルグルコシドは非イオン系界面活性剤であるため、洗浄性や起泡性向上の為、他の界面活性剤を併用することが可能であるが、自動車用洗浄剤として塗装面に悪影響をおよぼさないようにしなければならない。
【0024】
又、本発明の組成物はアミノ変性ジメチルポリシロキサンを含有するカチオン性の系であるため、アニオン系界面活性剤以外の非イオン系界面活性剤、カチオン系界面活性剤、両性界面活性剤等を添加することで洗浄力、起泡力を向上させることができより効果的である。
【0025】
非イオン系界面活性剤としては、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルキルフェニールエーテル、ポリオキシエチレンアルキルエステル、ポリオキシエチレンポリオキシプロピレンブロックポリマー、ポリオキシアルキレンソルビタン脂肪酸エステル、ポリオキシアルキレン脂肪酸エステル、ポリオキシエチレン硬化ヒマシ油等のエチレンオキサイド付加物型のタイプのものは塗装面上で乾燥固化した時にシミや変色になる事があり、塗装面上に悪影響をおよぼす為適当でない。
【0026】
それ以外の非イオン系界面活性剤、例えば、アルキルアミンオキサイドやソルビタン脂肪酸エステル、グリセリン脂肪酸エステル、ショ糖エステル等を併用して用いることができる。特にアルキルアミンオキサイドを併用することが好ましく、配合割合としては本発明組成物中に0.1〜10wt%、より好ましくは0.5〜5.0wt%が良い。
【0027】
尚、本発明の自動車用洗浄剤組成物は、自動車塗装面だけでなく、タイヤ、バンパー、ガラス面等にも使用できる。又上記成分以外にも必要に応じて水溶性溶剤、グリコール類、ビルダー類、研磨剤、増粘剤、着色剤、香料、紫外線吸収剤、防腐剤及び殺菌剤等の任意成分を、塗装面上に悪影響をおよぽさない範囲内で適宜添加することもできる。
【0028】
本発明組成物の施用方法としては、塗装面へ直接施用してもよいが、通常は予め塗装面上の砂やホコリ等を洗い流すために、塗装面へ水をスプレーしたのち、湿ったスポンジ類に適量の本組成物を含ませたもので、塗装面へ塗りのばしながら汚れを洗浄する。或いは塗装面へ水をスプレーしたのち、本組成物をハンドスプレーやエアゾール缶に充填して噴射ガスを用いて塗装面に噴射したのち、湿ったスポンジ類で塗りのばしながら汚れを洗浄する。
【0029】
洗浄された塗装面には汚れをとらえた泡が残っているので、塗装面全体に水をスプレーして泡を十分に洗い流すことで、界面活性剤が汚れとともに洗い流され、本組成物中の撥水性被膜成分であるトリメチルシロキシケイ酸とオルガノポリシロキサンの混合液がアミノ変性ジメチルポリシロキサンの有機酸塩の定着作用によって、自動車塗装面上に、持続性に優れた撥水性被膜を形成する。
【0030】
次に実施例により本発明を更に具体的に説明するが、本発明はその要旨を越えない限り、以下の実施例に限定されるものではない。尚、実施例中%は全て重量%を示す。
【0031】
実施例および比較例の使用物は次にあげるものである。
・R−2701(ワッカーケミカルズ イーストアジア)
トリメチルシロキシケイ酸30部を粘度350cs(25℃)のジメチルポリシロキサン70部に溶解させた混合液33wt%を非イオン系界面活性剤で水に分散させたシリコーンエマルジョン
・BY−22−049(東レダウコーニングシリコーン)
トリメチルシロキシケイ酸33部を粘度350cs(25℃)のジメチルポリシロキサン67部に溶解させた混合液40wt%を非イオン系界面活性剤で水に分散させたシリコーンエマルジョン
・プランタケア2000UP及びグルコポン600CSUP
アルキルグルコシド 前述
・KF393(信越化学工業)
粘度60cs(25℃)、アミノ当量360のアミノ変性ジメチルポリシロキサン
・BY16−904(東レダウコーニングシリコーン)
粘度60cs(25℃)、アミノ当量360のアミノ変性ジメチルポリシロキサン
・L−656(ワッカーケミカルズ イーストアジア)
粘度25cs(25℃)、アミノ当量800のアミノ変性ジメチルポリシロキサン
・SF8417(東レダウコーニングシリコーン)
粘度1200cs(25℃)、アミノ当量1800のアミノ変性ジメチルポリシロキサン
・ポロンMF51(信越化学工業)
粘度1300cs(25℃)、アミノ当量1700のアミノ変性ジメチルポリシロキサン35wt%を非イオン系界面活性剤で水に乳化分散したエマルジョン
・KF800 4(信越化学工業)
粘度800cs(25℃)、アミノ当量1500のアミノ変性ジメチルポリシロキサン
・ゲナミノックスK−12(ヘキスト社)
アルキフルアミンオキシド 非イオン系界面活性剤、有効分33%の水溶液
・ノニポール100(三洋化成工業)
ポリオキシエチレン(10モル)ノニルフェニールエーテル型の非イオン系界面活性剤、有効分100%
・HEC SP600(ダイセル化学工業)
ヒドロキシエチルセルロースの水溶性増粘剤
【0032】
【実施例および比較例】
実施例1

Figure 0003769710
【0033】
実施例2
Figure 0003769710
【0034】
実施例3
Figure 0003769710
【0035】
比較例1
Figure 0003769710
【0036】
比較例2
Figure 0003769710
【0037】
比較例3
Figure 0003769710
【0038】
比較例4
Figure 0003769710
Figure 0003769710
【0039】
比較例5
Figure 0003769710
【0040】
泡だち性及び洗浄性の評価試験
2週間洗車せずに屋外で曝露しておいた白色の自動車ボンネットに水をかけた後、実施例、比較例の各組成物を各々スポンジに同量ずつ浸み込ませたもので擦り、泡立ち性と洗浄性の評価を目視により判定した。
泡立ち性の評価基準
◎:大量に起泡する
〇:よく起泡する
△:あまり起泡しない
×:全く起泡しない
洗浄性の評価基準
◎:完全に汚れが落ちる
○:大体の汚れが落ちる
△:かなり汚れが残る
×:全く汚れが落ちない
【0041】
初期撥水性及び撥水持続性の評価試験
市販の自動車用ボディーシャンプーで十分洗浄して、撥水性の全くない、水で全面が濡れる黒色の自動車ボンネットを用意した。水をかけて自動車ボディーが完全に濡れた状態にして、実施例、比較例の各組成物を各々スポンジに同量ずつ浸み込ませたもので擦った後、すぐに水洗いした時の初期撥水性及び水洗後1週間曝露した後に再度水洗したときの撥水持続性を目視により判定した。
撥水性及び撥水持続性の評価基準
◎:微小の水玉になってよくはじく
○:はじきがあるが水玉が変形している
△:ややはじきが鈍い
×:殆どはじかない
【0042】
ムラの評価試験
初期撥水性の試験と同様の試験方法で、すぐに水洗いせずに屋外の直射日光下で30分間放置して自然乾燥させた後、水洗いして自動車塗装面のムラやシミを目視により観察する。
ムラの評価基準
◎:ムラやシミ跡が全くない
○:ムラ跡が殆どない
△:ムラやシミ跡が目立つ
×:ムラやシミ跡がはげしい
【0043】
Figure 0003769710
【0044】
【発明の効果】
本発明の自動車用洗浄剤組成物は、前記のごとき構成からなるものであり、これを自動車等の塗装面に施用する場合、洗浄しながら同時にワックスがけができる。従来の洗浄作業とワックスがけ作業の2段階行なっていたものを1段階で行なうことができるので、作業時間の短縮及び労力の軽減が得られる。この発明の自動車用洗浄剤組成物は、アルキルグルコシドを含有することにより、塗装面に悪影響を与えることなく、汚れの状態によらず安定した泡立ちと洗浄力効果が得られ、水洗い後にムラのない撥水被膜を形成し撥水持続性に優れた効果を奏するものである。[0001]
[Industrial application fields]
The present invention relates to an automotive cleaner composition. More particularly, the present invention relates to a composition that can achieve the effect of forming a water-repellent coating simultaneously with cleaning without adversely affecting the painted surface and glass surface of an automobile or the like.
[0002]
[Prior art]
Painted surfaces of automobiles and the like are exposed to deterioration factors such as sunlight, rainwater, and air, and dirt such as dust, soot, oil particles, and dust in the atmosphere are attached. In order to remove these stains, an automobile cleaner mainly composed of a surfactant is used. However, some of these surfactants dry during car washing, stick to the painted surface, and leave a stain on the painted surface when washed with water, so a safe cleaning agent is desired.
[0003]
After removing the dirt in this way, wax is applied to prevent the painted surface from deteriorating and to protect the painted surface. Conventionally, as a method of applying wax to a painted surface, first, a painted surface is first washed with a shampoo for an automobile with a large amount of water, and then water is completely wiped off and then waxed.
[0004]
[Problems to be solved by the invention]
However, such a method of applying a wax is a very complicated operation requiring time and labor, comprising a two-step process in which a cleaning operation is first performed to completely wipe off moisture, and then wax removal is performed. An object of the present invention is to provide an automotive cleaner composition that can improve this complicated operation and can be performed in one stage, and can be waxed at the same time as performing the cleaning operation.
[0005]
[Means and Actions for Solving the Problems]
In the present invention, based on the above background, as a result of various studies for the purpose of obtaining a composition that can achieve the effect of forming a water-repellent film at the same time only by performing a cleaning operation, We have found that this goal is achieved.
[0006]
The present invention solves the above-mentioned problems, and is an automotive detergent composition characterized by dissolving or dispersing the following components (a), (b), (c), and (d) in water.
(A) A silicone emulsion in which a mixed liquid of trimethylsiloxysilicic acid and organopolysiloxane represented by the general formula (Chemical Formula 1) is dispersed in water
[(CH 3 ) 3 SiO 1/2 ] X · [SiO 2 ] Y
(Where X = 1 to 3, Y = 0.5 to 8)
(B) Amino-modified dimethylpolysiloxane (c) Organic acid (d) Alkyl glucoside represented by the general formula (Formula 2)
C n H 2n + 1 O ( C 6 H 10 O 5) Z H
(Where n = 8 to 16, 1 <Z <2)
[0007]
Hereinafter, the present invention will be described in detail. The mixed liquid of trimethylsiloxysilicic acid and organopolysiloxane represented by the general formula (Chemical formula 1), which is the component (a) of the automotive cleaner composition of the present invention, is in close contact with the painted surface to form a water-repellent coating. And has excellent performance in water repellency.
[0008]
The mixed liquid of trimethylsiloxysilicic acid and organopolysiloxane is obtained by dissolving trimethylsiloxysilicic acid in dimethylpolysiloxane having a viscosity in the range of 10 to 10000 cs (25 ° C.) at a ratio of 20 to 60%, and 20% If it is less than 1, water repellency is inferior, which is not preferable. If it exceeds 60%, a uniform film cannot be obtained and unevenness occurs, which is not preferable. Examples of the mixed liquid of trimethylsiloxysilicic acid and dimethylpolysiloxane include VP-1038 manufactured by Wacker Chemicals East Asia, DC593 manufactured by Toray Dow Corning Silicone, and the like. In addition, it can be used by dissolving trimethylsiloxysilicic acid represented by the general formula (Chemical Formula 1) in an arbitrary dimethylpolysiloxane or the like.
[0009]
A silicone emulsion in which a mixed liquid of trimethylsiloxysilicic acid and organopolysiloxane represented by the general formula (Chemical Formula 1) is dispersed in water is obtained by using a surfactant or the like to mix a mixed liquid of trimethylsiloxysilicic acid and dimethylpolysiloxane with water. And emulsified and dispersed.
[0010]
As the surfactant, one or more of nonionic surfactants, cationic surfactants, amphoteric surfactants, anionic surfactants, silicone surfactants, fluorine surfactants and the like are used in combination. Can be used. As a silicone emulsion in which a mixed liquid of trimethylsiloxysilicic acid and dimethylpolysiloxane is dispersed in water, for example, R-2701 of Wacker Chemicals East Asia, BY-22-049 of Toray Dow Corning Silicone Co., Ltd. or the like is used. Can do.
[0011]
The mixed liquid of trimethylsiloxysilicic acid and organopolysiloxane should be 0.5 to 15 wt%, preferably 1 to 10 wt% in the composition, and if it is less than 0.5 wt%, sufficient water repellency imparting effect is given. I can't. On the other hand, if it exceeds 15 wt%, it is not preferable because it is more than necessary and stickiness occurs.
[0012]
The amino-modified dimethylpolysiloxane which is the component (b) of the automotive cleaner composition of the present invention has a function as an auxiliary agent for improving the water repellency and fixability of the organopolysiloxane solution of trimethylsiloxysilicate. The modified dimethylpolysiloxane is first adsorbed on the coating surface, and the mixed liquid of trimethylsiloxysilicic acid and organopolysiloxane is fixed to fix the water-repellent coating, thereby improving the water repellency.
[0013]
Amino-modified dimethylpolysiloxane can use the side chain in dimethylpolysiloxane, the terminal, or the amino group bonded to both side chain and terminal, can be used alone or in combination of two or more. can do.
[0014]
The amino-modified dimethylpolysiloxane preferably has a viscosity of 10 to 25000 cs at 25 ° C. and an amino equivalent of 300 to 2000. When the amino equivalent is less than 300, the hydrophilicity is high, and it is easy to be washed away with water and does not work as a fixing aid, which is not preferable. On the other hand, if the amino equivalent exceeds 2000, the lipophilicity is too high, the action of the amino group becomes weak, and it does not work as a fixing aid, which is not preferable.
[0015]
The compounding amount of the amino-modified dimethylpolysiloxane in the composition is preferably 0.01 to 5 wt%, more preferably 0.05 to 2 wt%. When the blending amount is less than 0.01 wt%, a sufficient fixing action cannot be obtained and the water repellency effect is deteriorated. If the blending amount exceeds 5 wt%, the action of the amino group becomes too strong and unevenness is likely to occur, which is not preferable.
[0016]
The organic acid which is the component (c) of the automotive cleaner composition of the present invention reacts with the amino-modified dimethylpolysiloxane to improve the hydrophilicity of the amino-modified dimethylpolysiloxane. This is to provide stabilization for uniformly dissolving or dispersing siloxane.
[0017]
As the organic acid, for example, carboxylic acid, sulfonic acid, sulfinic acid and the like can be used. Of these organic acids, carboxylic acids are preferred, for example, monovalent carboxylic acids such as formic acid, acetic acid, propionic acid, n-butyric acid, isobutyric acid, hyvalic acid, valeric acid, isovaleric acid, hexanoic acid, 2-ethylbutyric acid, Alternatively, oxycarboxylic acids such as glycolic acid, lactic acid, malic acid, tartaric acid, gluconic acid and citric acid can be used.
[0018]
In the present invention, one of these various carboxylic acids can be used alone, or two or more can be used in combination. Among the organic carboxylic acids that can be used in the present invention, most preferred are monovalent carboxylic acids or oxycarboxylic acids, and it is particularly preferable to use formic acid, acetic acid, glycolic acid, and lactic acid.
[0019]
In this invention, the blending amount of the organic acid as the component (c) is 0.5 to 5.0 equivalent parts of the amount necessary for neutralization of the amino-modified dimethylpolysiloxane as the component (b), particularly preferably 1. It is preferable to use 0.0-3.0 equivalent part. If the amount is less than 0.5 equivalent part, the amino-modified dimethylpolysiloxane is separated without being stably dissolved or dispersed in the composition, and a sufficient effect cannot be obtained. If the amount exceeds 5.0 equivalent parts, the irritation given to the skin when it adheres to the skin increases, and if it adheres to the painted surface of an automobile or the like, the possibility of damaging the painted surface increases.
[0020]
The alkyl glucoside represented by the general formula (Chemical Formula 2), which is the component (d) of the automotive cleaner composition of the present invention, is a non-ion in which a sugar that is a hydrophilic group and an alkyl group that is a hydrophobic group are linked by a glucoside bond. It is a surfactant of the system and has excellent biodegradability and low irritation. Further, it is characterized by fine and creamy bubbles, which can obtain stable bubbles without being influenced by dirt and exhibit an excellent effect on cleaning action.
[0021]
In addition, this surfactant itself is ideal as a cleaning agent for automobiles, even if it is dried and solidified on the painted surface and wind glass surface, it does not adversely affect the painted surface or glass surface, such as spots, blisters, or discoloration. And 1.0 to 30 wt%, more preferably 1.5 to 20 wt%. If it is less than 1.0 wt%, a sufficient detergency effect cannot be obtained, and if it exceeds 30 wt%, a sufficient water repellency effect cannot be obtained.
[0022]
Examples of the alkyl glucoside of the present invention include the following, and one or two or more of them can be used in combination.
Glucopone 650EC: n = 8-14 Z = 1.5
Glucopone 225CSUP: n = 8-10 Z = 1.6
Glucopone 600CSUP: n = 12-16 Z = 1.4
Glucopone 600EC: n = 8-14 Z = 1.4
Planter care 2000UP: n = 8-16 Z = 1.4
AG-8 manufactured by Henkel Hakusui Co., Ltd .: n = 8 Z = 1.3 to 2.0
Made by Nippon Seika Co., Ltd. [0023]
Alkyl glucoside is a nonionic surfactant, so it can be used in combination with other surfactants to improve detergency and foaming properties. You must not do it.
[0024]
Further, since the composition of the present invention is a cationic system containing amino-modified dimethylpolysiloxane, a nonionic surfactant other than an anionic surfactant, a cationic surfactant, an amphoteric surfactant, etc. By adding, the cleaning power and foaming power can be improved, which is more effective.
[0025]
Nonionic surfactants include polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene alkyl ester, polyoxyethylene polyoxypropylene block polymer, polyoxyalkylene sorbitan fatty acid ester, polyoxyalkylene fatty acid ester, An ethylene oxide adduct type type such as polyoxyethylene hydrogenated castor oil is not suitable because it may cause stains and discoloration when dried and solidified on the painted surface, and adversely affects the painted surface.
[0026]
Other nonionic surfactants such as alkylamine oxide, sorbitan fatty acid ester, glycerin fatty acid ester, and sucrose ester can be used in combination. In particular, it is preferable to use alkylamine oxide in combination, and the blending ratio is 0.1 to 10 wt%, more preferably 0.5 to 5.0 wt% in the composition of the present invention.
[0027]
In addition, the automotive detergent composition of the present invention can be used not only on automobile painted surfaces but also on tires, bumpers, glass surfaces, and the like. In addition to the above-mentioned components, optional components such as water-soluble solvents, glycols, builders, abrasives, thickeners, colorants, fragrances, ultraviolet absorbers, preservatives, and bactericides are added to the coating surface as necessary. It can also be added as appropriate within the range that does not adversely affect.
[0028]
As a method for applying the composition of the present invention, it may be applied directly to the painted surface. Usually, in order to wash away sand, dust, etc. on the painted surface in advance, water is sprayed on the painted surface and then wet sponges are used. This contains a suitable amount of this composition, and the stain is washed while spreading on the painted surface. Alternatively, after spraying water onto the painted surface, the composition is filled into a hand spray or an aerosol can and sprayed onto the painted surface using a propellant gas, and then the stain is washed while spreading with a wet sponge.
[0029]
Foam that has caught dirt remains on the cleaned painted surface. Spraying the entire painted surface with water thoroughly rinses away the foam, so that the surfactant is washed away along with the stain. A mixed liquid of trimethylsiloxysilicic acid and organopolysiloxane, which is an aqueous film component, forms a water-repellent film having excellent durability on the painted surface of an automobile by the fixing action of an organic acid salt of amino-modified dimethylpolysiloxane.
[0030]
EXAMPLES Next, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples unless it exceeds the gist. In the examples, “%” means “% by weight”.
[0031]
The materials used in Examples and Comparative Examples are as follows.
・ R-2701 (Wacker Chemicals East Asia)
Silicone emulsion BY-22-049 (Toray) in which 33 parts by weight of a mixed solution prepared by dissolving 30 parts of trimethylsiloxysilicic acid in 70 parts of dimethylpolysiloxane having a viscosity of 350 cs (25 ° C.) was dispersed in water with a nonionic surfactant. Dow Corning Silicone)
Silicone emulsion / planter care 2000UP and glucopon 600CSUP in which 40 parts by weight of a mixed solution obtained by dissolving 33 parts of trimethylsiloxysilicic acid in 67 parts of dimethylpolysiloxane having a viscosity of 350 cs (25 ° C.) is dispersed in water with a nonionic surfactant.
Alkyl glucoside as described above ・ KF393 (Shin-Etsu Chemical Co., Ltd.)
Viscosity 60 cs (25 ° C.), amino-modified 360 amino-modified dimethylpolysiloxane BY16-904 (Toray Dow Corning Silicone)
Viscosity 60cs (25 ° C), amino equivalent 360, amino-modified dimethylpolysiloxane L-656 (Wacker Chemicals East Asia)
Viscosity 25cs (25 ° C), amino equivalent 800 amino-modified dimethylpolysiloxane SF8417 (Toray Dow Corning Silicone)
Amino-modified dimethylpolysiloxane poron MF51 (Shin-Etsu Chemical Co., Ltd.) with a viscosity of 1200 cs (25 ° C.) and an amino equivalent of 1800
Emulsion KF800 4 (Shin-Etsu Chemical Co., Ltd.) emulsified and dispersed in water with a nonionic surfactant with 35 wt% of amino-modified dimethylpolysiloxane having a viscosity of 1300 cs (25 ° C.) and an amino equivalent of 1700
Viscosity 800 cs (25 ° C.), amino-modified 1500 amino-modified dimethylpolysiloxane Genaminox K-12 (Hoechst)
Alkyfluamine oxide Nonionic surfactant, 33% effective aqueous solution Nonipol 100 (Sanyo Chemical Industries)
Nonionic surfactant of polyoxyethylene (10 mol) nonylphenyl ether type, 100% effective content
・ HEC SP600 (Daicel Chemical Industries)
Hydroxyethyl cellulose water-soluble thickener [0032]
Examples and Comparative Examples
Example 1
Figure 0003769710
[0033]
Example 2
Figure 0003769710
[0034]
Example 3
Figure 0003769710
[0035]
Comparative Example 1
Figure 0003769710
[0036]
Comparative Example 2
Figure 0003769710
[0037]
Comparative Example 3
Figure 0003769710
[0038]
Comparative Example 4
Figure 0003769710
Figure 0003769710
[0039]
Comparative Example 5
Figure 0003769710
[0040]
Evaluation test of foaminess and detergency After water was applied to a white automobile bonnet exposed outdoors without washing for 2 weeks, each composition of Examples and Comparative Examples was put in the same amount on each sponge. Rubbing was carried out with the soaked product, and the evaluation of foaming property and cleaning property was judged visually.
Evaluation criteria for foamability ◎: Foaming in large quantities ○: Foaming well △: Not foaming very much ×: Evaluation criteria for detergency not foaming at all ◎: Dirt is completely removed ○: Substantially dirty : Dirt remains fairly ×: Dirt does not come off at all [0041]
Evaluation test of initial water repellency and water repellency Sufficiently washed with a commercially available car body shampoo to prepare a black car bonnet having no water repellency and completely wetted with water. After the vehicle body is completely wetted with water and rubbed with the same amount of each of the compositions of Examples and Comparative Examples, the initial repellency when washed immediately with water. The water repellency persistence was determined by visual observation when the water was washed again after being exposed for 1 week after being washed with water.
Evaluation criteria for water repellency and water repellency ◎: Repels well when it becomes minute polka dots ○: Repels but polka dots are deformed △: Slightly repels ×: Almost does not repel [0042]
Unevenness evaluation test Using the same test method as the initial water repellency test, leave it for 30 minutes in the direct sunlight outdoors without allowing it to immediately wash it, let it air dry, and then wash it with water to remove unevenness and stains on the car paint surface. Observe visually.
Evaluation criteria for unevenness ◎: No unevenness or spot marks ○: Almost no unevenness marks Δ: Unevenness or spot marks are conspicuous ×: Unevenness or spot marks are sharp [0043]
Figure 0003769710
[0044]
【The invention's effect】
The automotive detergent composition of the present invention has the above-described configuration, and when applied to a painted surface of an automobile or the like, it can be waxed simultaneously with washing. Since two steps of the conventional cleaning operation and waxing operation can be performed in one step, the operation time and labor can be reduced. By containing an alkyl glucoside, the automotive detergent composition of the present invention has a stable foaming and detergency effect regardless of the state of dirt without adversely affecting the painted surface, and there is no unevenness after washing with water. A water repellent film is formed, and the effect of having excellent water repellency is exhibited.

Claims (5)

下記成分(a)、(b)、(c)、(d)を水に溶解又は分散させたことを特徴とする自動車用洗浄剤組成物。
(a)一般式(化1)で表わされるトリメチルシロキシケイ酸とオルガノポリシロキサンの混合液を水に分散させたシリコーンエマルジョン
Figure 0003769710
(式中X=1〜3、Y=0.5〜8を表わす)
(b)アミノ変性ジメチルポリシロキサン
(c)有機酸
(d)一般式(化2)で表わされるアルキルグルコシド
Figure 0003769710
(式中n=8〜16、1<Z<2を表わす)
A cleaning composition for automobiles, wherein the following components (a), (b), (c), and (d) are dissolved or dispersed in water.
(A) A silicone emulsion in which a mixed liquid of trimethylsiloxysilicic acid and organopolysiloxane represented by the general formula (Chemical Formula 1) is dispersed in water
Figure 0003769710
(Where X = 1 to 3, Y = 0.5 to 8)
(B) Amino-modified dimethylpolysiloxane (c) Organic acid (d) Alkyl glucoside represented by the general formula (Formula 2)
Figure 0003769710
(Where n = 8 to 16, 1 <Z <2)
(a)成分中のオルガノポリシロキサンが、粘度10〜10000cs(25℃)のジメチルポリシロキサンである請求項1記載の自動車用洗浄剤組成物。The automotive detergent composition according to claim 1, wherein the organopolysiloxane in component (a) is dimethylpolysiloxane having a viscosity of 10 to 10,000 cs (25 ° C). (b)成分のアミノ変性ジメチルポリシロキサンが、粘度10〜25000cs(25℃)、アミノ当量300〜2000である請求項1または2記載の自動車用洗浄剤組成物。The automotive detergent composition according to claim 1 or 2, wherein the amino-modified dimethylpolysiloxane as component (b) has a viscosity of 10 to 25000 cs (25 ° C) and an amino equivalent of 300 to 2000. (c)成分の有機酸が一価のカルボン酸又はオキシカルボン酸である請求項1、2、3のいずれかに記載の自動車用洗浄剤組成物。The automobile cleaning composition according to any one of claims 1, 2, and 3, wherein the organic acid of component (c) is a monovalent carboxylic acid or oxycarboxylic acid. 請求項1記載の組成物にアルキルアミンオキサイドを添加したことを特徴とする請求項1、2、3、4のいずれかに記載の自動車用洗浄剤組成物。The automotive cleaner composition according to any one of claims 1, 2, 3, and 4, wherein an alkylamine oxide is added to the composition according to claim 1.
JP32512397A 1997-10-20 1997-10-20 Cleaning composition for automobile Expired - Lifetime JP3769710B2 (en)

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